Arteries: The vessels carrying blood away from the heart.Pulmonary Artery: The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs.Carotid Arteries: Either of the two principal arteries on both sides of the neck that supply blood to the head and neck; each divides into two branches, the internal carotid artery and the external carotid artery.Femoral Artery: The main artery of the thigh, a continuation of the external iliac artery.Cerebral Arteries: The arterial blood vessels supplying the CEREBRUM.Blood Vessels: Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).Renal Artery: A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters.Mesenteric Arteries: Arteries which arise from the abdominal aorta and distribute to most of the intestines.Coronary Vessels: The veins and arteries of the HEART.Basilar Artery: The artery formed by the union of the right and left vertebral arteries; it runs from the lower to the upper border of the pons, where it bifurcates into the two posterior cerebral arteries.Iliac Artery: Either of two large arteries originating from the abdominal aorta; they supply blood to the pelvis, abdominal wall and legs.Subclavian Artery: Artery arising from the brachiocephalic trunk on the right side and from the arch of the aorta on the left side. It distributes to the neck, thoracic wall, spinal cord, brain, meninges, and upper limb.Vertebral Artery: The first branch of the SUBCLAVIAN ARTERY with distribution to muscles of the NECK; VERTEBRAE; SPINAL CORD; CEREBELLUM; and interior of the CEREBRUM.Carotid Artery, Internal: Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose.Radial Artery: The direct continuation of the brachial trunk, originating at the bifurcation of the brachial artery opposite the neck of the radius. Its branches may be divided into three groups corresponding to the three regions in which the vessel is situated, the forearm, wrist, and hand.Hepatic Artery: A branch of the celiac artery that distributes to the stomach, pancreas, duodenum, liver, gallbladder, and greater omentum.Mesenteric Artery, Superior: A large vessel supplying the whole length of the small intestine except the superior part of the duodenum. It also supplies the cecum and the ascending part of the colon and about half the transverse part of the colon. It arises from the anterior surface of the aorta below the celiac artery at the level of the first lumbar vertebra.Celiac Artery: The arterial trunk that arises from the abdominal aorta and after a short course divides into the left gastric, common hepatic and splenic arteries.Brachial Artery: The continuation of the axillary artery; it branches into the radial and ulnar arteries.Carotid Artery Diseases: Pathological conditions involving the CAROTID ARTERIES, including the common, internal, and external carotid arteries. ATHEROSCLEROSIS and TRAUMA are relatively frequent causes of carotid artery pathology.Aneurysm: Pathological outpouching or sac-like dilatation in the wall of any blood vessel (ARTERIES or VEINS) or the heart (HEART ANEURYSM). It indicates a thin and weakened area in the wall which may later rupture. Aneurysms are classified by location, etiology, or other characteristics.Splenic Artery: The largest branch of the celiac trunk with distribution to the spleen, pancreas, stomach and greater omentum.Coronary Artery Bypass: Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.Ulnar Artery: The larger of the two terminal branches of the brachial artery, beginning about one centimeter distal to the bend of the elbow. Like the RADIAL ARTERY, its branches may be divided into three groups corresponding to their locations in the forearm, wrist, and hand.Carotid Artery, Common: The two principal arteries supplying the structures of the head and neck. They ascend in the neck, one on each side, and at the level of the upper border of the thyroid cartilage, each divides into two branches, the external (CAROTID ARTERY, EXTERNAL) and internal (CAROTID ARTERY, INTERNAL) carotid arteries.Mammary Arteries: Arteries originating from the subclavian or axillary arteries and distributing to the anterior thoracic wall, mediastinal structures, diaphragm, pectoral muscles and mammary gland.Bronchial Arteries: Left bronchial arteries arise from the thoracic aorta, the right from the first aortic intercostal or the upper left bronchial artery; they supply the bronchi and the lower trachea.Vasoconstriction: The physiological narrowing of BLOOD VESSELS by contraction of the VASCULAR SMOOTH MUSCLE.Muscle, Smooth, Vascular: The nonstriated involuntary muscle tissue of blood vessels.Lymphatic Vessels: Tubular vessels that are involved in the transport of LYMPH and LYMPHOCYTES.Vasodilation: The physiological widening of BLOOD VESSELS by relaxing the underlying VASCULAR SMOOTH MUSCLE.Endothelium, Vascular: Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.Angiography: Radiography of blood vessels after injection of a contrast medium.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Arterial Occlusive Diseases: Pathological processes which result in the partial or complete obstruction of ARTERIES. They are characterized by greatly reduced or absence of blood flow through these vessels. They are also known as arterial insufficiency.Retinal Vessels: The blood vessels which supply and drain the RETINA.Popliteal Artery: The continuation of the femoral artery coursing through the popliteal fossa; it divides into the anterior and posterior tibial arteries.Tomography, X-Ray Computed: Tomography using x-ray transmission and a computer algorithm to reconstruct the image.Regional Blood Flow: The flow of BLOOD through or around an organ or region of the body.Ophthalmic Artery: Artery originating from the internal carotid artery and distributing to the eye, orbit and adjacent facial structures.Cerebral Angiography: Radiography of the vascular system of the brain after injection of a contrast medium.Vasodilator Agents: Drugs used to cause dilation of the blood vessels.Umbilical Arteries: Specialized arterial vessels in the umbilical cord. They carry waste and deoxygenated blood from the FETUS to the mother via the PLACENTA. In humans, there are usually two umbilical arteries but sometimes one.Stents: Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.Middle Cerebral Artery: The largest of the cerebral arteries. It trifurcates into temporal, frontal, and parietal branches supplying blood to most of the parenchyma of these lobes in the CEREBRAL CORTEX. These are the areas involved in motor, sensory, and speech activities.Treatment Outcome: Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.Thoracic Arteries: Arteries originating from the subclavian or axillary arteries and distributing to the anterior thoracic wall, mediastinal structures, diaphragm, pectoral muscles, mammary gland and the axillary aspect of the chest wall.Aneurysm, False: Not an aneurysm but a well-defined collection of blood and CONNECTIVE TISSUE outside the wall of a blood vessel or the heart. It is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. False aneurysm is formed by organized THROMBUS and HEMATOMA in surrounding tissue.Vasoconstrictor Agents: Drugs used to cause constriction of the blood vessels.Renal Artery Obstruction: Narrowing or occlusion of the RENAL ARTERY or arteries. It is due usually to ATHEROSCLEROSIS; FIBROMUSCULAR DYSPLASIA; THROMBOSIS; EMBOLISM, or external pressure. The reduced renal perfusion can lead to renovascular hypertension (HYPERTENSION, RENOVASCULAR).Magnetic Resonance Angiography: Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.Temporal Arteries: Arteries arising from the external carotid or the maxillary artery and distributing to the temporal region.Brachiocephalic Trunk: The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Dissection: The separation and isolation of tissues for surgical purposes, or for the analysis or study of their structures.Embolization, Therapeutic: A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.Transposition of Great Vessels: A congenital cardiovascular malformation in which the AORTA arises entirely from the RIGHT VENTRICLE, and the PULMONARY ARTERY arises from the LEFT VENTRICLE. Consequently, the pulmonary and the systemic circulations are parallel and not sequential, so that the venous return from the peripheral circulation is re-circulated by the right ventricle via aorta to the systemic circulation without being oxygenated in the lungs. This is a potentially lethal form of heart disease in newborns and infants.Carotid Stenosis: Narrowing or stricture of any part of the CAROTID ARTERIES, most often due to atherosclerotic plaque formation. Ulcerations may form in atherosclerotic plaques and induce THROMBUS formation. Platelet or cholesterol emboli may arise from stenotic carotid lesions and induce a TRANSIENT ISCHEMIC ATTACK; CEREBROVASCULAR ACCIDENT; or temporary blindness (AMAUROSIS FUGAX). (From Adams et al., Principles of Neurology, 6th ed, pp 822-3)Vascular Surgical Procedures: Operative procedures for the treatment of vascular disorders.Aorta: The main trunk of the systemic arteries.Aorta, Thoracic: The portion of the descending aorta proceeding from the arch of the aorta and extending to the DIAPHRAGM, eventually connecting to the ABDOMINAL AORTA.Angioplasty, Balloon: Use of a balloon catheter for dilation of an occluded artery. It is used in treatment of arterial occlusive diseases, including renal artery stenosis and arterial occlusions in the leg. For the specific technique of BALLOON DILATION in coronary arteries, ANGIOPLASTY, BALLOON, CORONARY is available.Ultrasonography, Doppler: Ultrasonography applying the Doppler effect, with frequency-shifted ultrasound reflections produced by moving targets (usually red blood cells) in the bloodstream along the ultrasound axis in direct proportion to the velocity of movement of the targets, to determine both direction and velocity of blood flow. (Stedman, 25th ed)Uterine Artery: A branch arising from the internal iliac artery in females, that supplies blood to the uterus.Blood Pressure: PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.Dogs: The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)Coronary Circulation: The circulation of blood through the CORONARY VESSELS of the HEART.Blood Vessel Prosthesis: Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels.Carotid Artery, External: Branch of the common carotid artery which supplies the exterior of the head, the face, and the greater part of the neck.Carotid Artery Injuries: Damages to the CAROTID ARTERIES caused either by blunt force or penetrating trauma, such as CRANIOCEREBRAL TRAUMA; THORACIC INJURIES; and NECK INJURIES. Damaged carotid arteries can lead to CAROTID ARTERY THROMBOSIS; CAROTID-CAVERNOUS SINUS FISTULA; pseudoaneurysm formation; and INTERNAL CAROTID ARTERY DISSECTION. (From Am J Forensic Med Pathol 1997, 18:251; J Trauma 1994, 37:473)Intracranial Aneurysm: Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)Arteriosclerosis: Thickening and loss of elasticity of the walls of ARTERIES of all sizes. There are many forms classified by the types of lesions and arteries involved, such as ATHEROSCLEROSIS with fatty lesions in the ARTERIAL INTIMA of medium and large muscular arteries.Coronary Disease: An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.Hemodynamics: The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.Follow-Up Studies: Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.Stress, Mechanical: A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.Swine: Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid: A stable prostaglandin endoperoxide analog which serves as a thromboxane mimetic. Its actions include mimicking the hydro-osmotic effect of VASOPRESSIN and activation of TYPE C PHOSPHOLIPASES. (From J Pharmacol Exp Ther 1983;224(1): 108-117; Biochem J 1984;222(1):103-110)Norepinephrine: Precursor of epinephrine that is secreted by the adrenal medulla and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus. It is also found in plants and is used pharmacologically as a sympathomimetic.Blood Vessel Prosthesis Implantation: Surgical insertion of BLOOD VESSEL PROSTHESES to repair injured or diseased blood vessels.Saphenous Vein: The vein which drains the foot and leg.Coronary Vessel Anomalies: Malformations of CORONARY VESSELS, either arteries or veins. Included are anomalous origins of coronary arteries; ARTERIOVENOUS FISTULA; CORONARY ANEURYSM; MYOCARDIAL BRIDGING; and others.Muscle Relaxation: That phase of a muscle twitch during which a muscle returns to a resting position.Aorta, Abdominal: The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries.Rabbits: The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.Muscle Contraction: A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.Nitric Oxide: A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP.Myocardial Infarction: NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).Infarction, Middle Cerebral Artery: NECROSIS occurring in the MIDDLE CEREBRAL ARTERY distribution system which brings blood to the entire lateral aspects of each CEREBRAL HEMISPHERE. Clinical signs include impaired cognition; APHASIA; AGRAPHIA; weak and numbness in the face and arms, contralaterally or bilaterally depending on the infarction.Prospective Studies: Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.Axillary Artery: The continuation of the subclavian artery; it distributes over the upper limb, axilla, chest and shoulder.Retinal Artery Occlusion: Sudden ISCHEMIA in the RETINA due to blocked blood flow through the CENTRAL RETINAL ARTERY or its branches leading to sudden complete or partial loss of vision, respectively, in the eye.Retrospective Studies: Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.Collateral Circulation: Maintenance of blood flow to an organ despite obstruction of a principal vessel. Blood flow is maintained through small vessels.Carotid Artery Thrombosis: Blood clot formation in any part of the CAROTID ARTERIES. This may produce CAROTID STENOSIS or occlusion of the vessel, leading to TRANSIENT ISCHEMIC ATTACK; CEREBRAL INFARCTION; or AMAUROSIS FUGAX.Phenylephrine: An alpha-1 adrenergic agonist used as a mydriatic, nasal decongestant, and cardiotonic agent.Dose-Response Relationship, Drug: The relationship between the dose of an administered drug and the response of the organism to the drug.Risk Factors: An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.Aneurysm, Infected: Aneurysm due to growth of microorganisms in the arterial wall, or infection arising within preexisting arteriosclerotic aneurysms.Cadaver: A dead body, usually a human body.Vascular Resistance: The force that opposes the flow of BLOOD through a vascular bed. It is equal to the difference in BLOOD PRESSURE across the vascular bed divided by the CARDIAC OUTPUT.Constriction, Pathologic: The condition of an anatomical structure's being constricted beyond normal dimensions.Elasticity: Resistance and recovery from distortion of shape.Postoperative Complications: Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.Meningeal Arteries: Arteries which supply the dura mater.Vascular Patency: The degree to which BLOOD VESSELS are not blocked or obstructed.Coronary Stenosis: Narrowing or constriction of a coronary artery.Serotonin: A biochemical messenger and regulator, synthesized from the essential amino acid L-TRYPTOPHAN. In humans it is found primarily in the central nervous system, gastrointestinal tract, and blood platelets. Serotonin mediates several important physiological functions including neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity. Multiple receptor families (RECEPTORS, SEROTONIN) explain the broad physiological actions and distribution of this biochemical mediator.Cerebrovascular Circulation: The circulation of blood through the BLOOD VESSELS of the BRAIN.Calcitonin Gene-Related Peptide: Calcitonin gene-related peptide. A 37-amino acid peptide derived from the calcitonin gene. It occurs as a result of alternative processing of mRNA from the calcitonin gene. The neuropeptide is widely distributed in neural tissue of the brain, gut, perivascular nerves, and other tissue. The peptide produces multiple biological effects and has both circulatory and neurotransmitter modes of action. In particular, it is a potent endogenous vasodilator.Blood Flow Velocity: A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.Neovascularization, Physiologic: The development of new BLOOD VESSELS during the restoration of BLOOD CIRCULATION during the healing process.Magnetic Resonance Imaging: Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.Disease Models, Animal: Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.Prazosin: A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.Angiography, Digital Subtraction: A method of delineating blood vessels by subtracting a tissue background image from an image of tissue plus intravascular contrast material that attenuates the X-ray photons. The background image is determined from a digitized image taken a few moments before injection of the contrast material. The resulting angiogram is a high-contrast image of the vessel. This subtraction technique allows extraction of a high-intensity signal from the superimposed background information. The image is thus the result of the differential absorption of X-rays by different tissues.Maxillary Artery: A branch of the external carotid artery which distributes to the deep structures of the face (internal maxillary) and to the side of the face and nose (external maxillary).Adrenergic alpha-Antagonists: Drugs that bind to but do not activate alpha-adrenergic receptors thereby blocking the actions of endogenous or exogenous adrenergic agonists. Adrenergic alpha-antagonists are used in the treatment of hypertension, vasospasm, peripheral vascular disease, shock, and pheochromocytoma.Microcirculation: The circulation of the BLOOD through the MICROVASCULAR NETWORK.Veins: The vessels carrying blood away from the capillary beds.Angioplasty, Balloon, Coronary: Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.Carotid Artery, Internal, Dissection: The splitting of the vessel wall in one or both (left and right) internal carotid arteries (CAROTID ARTERY, INTERNAL). Interstitial hemorrhage into the media of the vessel wall can lead to occlusion of the internal carotid artery and aneurysm formation.Acetylcholine: A neurotransmitter found at neuromuscular junctions, autonomic ganglia, parasympathetic effector junctions, a subset of sympathetic effector junctions, and at many sites in the central nervous system.Ligation: Application of a ligature to tie a vessel or strangulate a part.Ultrasonography, Doppler, Color: Ultrasonography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image. This type of ultrasonography is well-suited to identifying the location of high-velocity flow (such as in a stenosis) or of mapping the extent of flow in a certain region.Receptors, Adrenergic, alpha: One of the two major pharmacological subdivisions of adrenergic receptors that were originally defined by the relative potencies of various adrenergic compounds. The alpha receptors were initially described as excitatory receptors that post-junctionally stimulate SMOOTH MUSCLE contraction. However, further analysis has revealed a more complex picture involving several alpha receptor subtypes and their involvement in feedback regulation.Endothelial Cells: Highly specialized EPITHELIAL CELLS that line the HEART; BLOOD VESSELS; and lymph vessels, forming the ENDOTHELIUM. They are polygonal in shape and joined together by TIGHT JUNCTIONS. The tight junctions allow for variable permeability to specific macromolecules that are transported across the endothelial layer.Rats, Sprague-Dawley: A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.Internal Mammary-Coronary Artery Anastomosis: Direct myocardial revascularization in which the internal mammary artery is anastomosed to the right coronary artery, circumflex artery, or anterior descending coronary artery. The internal mammary artery is the most frequent choice, especially for a single graft, for coronary artery bypass surgery.Catheterization: Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.Coronary Artery Bypass, Off-Pump: Coronary artery bypass surgery on a beating HEART without a CARDIOPULMONARY BYPASS (diverting the flow of blood from the heart and lungs through an oxygenator).Neovascularization, Pathologic: A pathologic process consisting of the proliferation of blood vessels in abnormal tissues or in abnormal positions.Tunica Intima: The innermost layer of an artery or vein, made up of one layer of endothelial cells and supported by an internal elastic lamina.Vertebral Artery Dissection: Splitting of the vessel wall in the VERTEBRAL ARTERY. Interstitial hemorrhage into the media of the vessel wall can lead to occlusion of the vertebral artery, aneurysm formation, or THROMBOEMBOLISM. Vertebral artery dissection is often associated with TRAUMA and injuries to the head-neck region but can occur spontaneously.Arterioles: The smallest divisions of the arteries located between the muscular arteries and the capillaries.Mesenteric Artery, Inferior: The artery supplying nearly all the left half of the transverse colon, the whole of the descending colon, the sigmoid colon, and the greater part of the rectum. It is smaller than the superior mesenteric artery (MESENTERIC ARTERY, SUPERIOR) and arises from the aorta above its bifurcation into the common iliac arteries.Pulsatile Flow: Rhythmic, intermittent propagation of a fluid through a BLOOD VESSEL or piping system, in contrast to constant, smooth propagation, which produces laminar flow.Vasomotor System: The neural systems which act on VASCULAR SMOOTH MUSCLE to control blood vessel diameter. The major neural control is through the sympathetic nervous system.Predictive Value of Tests: In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.Coronary Artery Disease: Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.Nitroglycerin: A volatile vasodilator which relieves ANGINA PECTORIS by stimulating GUANYLATE CYCLASE and lowering cytosolic calcium. It is also sometimes used for TOCOLYSIS and explosives.Ultrasonography, Interventional: The use of ultrasound to guide minimally invasive surgical procedures such as needle ASPIRATION BIOPSY; DRAINAGE; etc. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions.Immunohistochemistry: Histochemical localization of immunoreactive substances using labeled antibodies as reagents.Calcinosis: Pathologic deposition of calcium salts in tissues.Rats, Wistar: A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.Capillaries: The minute vessels that connect the arterioles and venules.Tunica Media: The middle layer of blood vessel walls, composed principally of thin, cylindrical, smooth muscle cells and elastic tissue. It accounts for the bulk of the wall of most arteries. The smooth muscle cells are arranged in circular layers around the vessel, and the thickness of the coat varies with the size of the vessel.Brain Ischemia: Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION.Models, Cardiovascular: Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.Myography: The recording of muscular movements. The apparatus is called a myograph, the record or tracing, a myogram. (From Stedman, 25th ed)Thrombosis: Formation and development of a thrombus or blood clot in the blood vessel.Angina Pectoris: The symptom of paroxysmal pain consequent to MYOCARDIAL ISCHEMIA usually of distinctive character, location and radiation. It is thought to be provoked by a transient stressful situation during which the oxygen requirements of the MYOCARDIUM exceed that supplied by the CORONARY CIRCULATION.Hypertension, Pulmonary: Increased VASCULAR RESISTANCE in the PULMONARY CIRCULATION, usually secondary to HEART DISEASES or LUNG DISEASES.Sensitivity and Specificity: Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)Nitroprusside: A powerful vasodilator used in emergencies to lower blood pressure or to improve cardiac function. It is also an indicator for free sulfhydryl groups in proteins.Aneurysm, Ruptured: The tearing or bursting of the weakened wall of the aneurysmal sac, usually heralded by sudden worsening pain. The great danger of a ruptured aneurysm is the large amount of blood spilling into the surrounding tissues and cavities, causing HEMORRHAGIC SHOCK.Cardiac Catheterization: Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.Vertebrobasilar Insufficiency: Localized or diffuse reduction in blood flow through the vertebrobasilar arterial system, which supplies the BRAIN STEM; CEREBELLUM; OCCIPITAL LOBE; medial TEMPORAL LOBE; and THALAMUS. Characteristic clinical features include SYNCOPE; lightheadedness; visual disturbances; and VERTIGO. BRAIN STEM INFARCTIONS or other BRAIN INFARCTION may be associated.Nitric Oxide Synthase: An NADPH-dependent enzyme that catalyzes the conversion of L-ARGININE and OXYGEN to produce CITRULLINE and NITRIC OXIDE.Muscle Tonus: The state of activity or tension of a muscle beyond that related to its physical properties, that is, its active resistance to stretch. In skeletal muscle, tonus is dependent upon efferent innervation. (Stedman, 25th ed)Circle of Willis: A polygonal anastomosis at the base of the brain formed by the internal carotid (CAROTID ARTERY, INTERNAL), proximal parts of the anterior, middle, and posterior cerebral arteries (ANTERIOR CEREBRAL ARTERY; MIDDLE CEREBRAL ARTERY; POSTERIOR CEREBRAL ARTERY), the anterior communicating artery and the posterior communicating arteries.Corrosion Casting: A tissue preparation technique that involves the injecting of plastic (acrylates) into blood vessels or other hollow viscera and treating the tissue with a caustic substance. This results in a negative copy or a solid replica of the enclosed space of the tissue that is ready for viewing under a scanning electron microscope.Angioplasty: Reconstruction or repair of a blood vessel, which includes the widening of a pathological narrowing of an artery or vein by the removal of atheromatous plaque material and/or the endothelial lining as well, or by dilatation (BALLOON ANGIOPLASTY) to compress an ATHEROMA. Except for ENDARTERECTOMY, usually these procedures are performed via catheterization as minimally invasive ENDOVASCULAR PROCEDURES.Atherosclerosis: A thickening and loss of elasticity of the walls of ARTERIES that occurs with formation of ATHEROSCLEROTIC PLAQUES within the ARTERIAL INTIMA.Cerebral Infarction: The formation of an area of NECROSIS in the CEREBRUM caused by an insufficiency of arterial or venous blood flow. Infarcts of the cerebrum are generally classified by hemisphere (i.e., left vs. right), lobe (e.g., frontal lobe infarction), arterial distribution (e.g., INFARCTION, ANTERIOR CEREBRAL ARTERY), and etiology (e.g., embolic infarction).Myocytes, Smooth Muscle: Non-striated, elongated, spindle-shaped cells found lining the digestive tract, uterus, and blood vessels. They are derived from specialized myoblasts (MYOBLASTS, SMOOTH MUSCLE).Ultrasonography, Doppler, Duplex: Ultrasonography applying the Doppler effect combined with real-time imaging. The real-time image is created by rapid movement of the ultrasound beam. A powerful advantage of this technique is the ability to estimate the velocity of flow from the Doppler shift frequency.Biological Factors: Endogenously-synthesized compounds that influence biological processes not otherwise classified under ENZYMES; HORMONES or HORMONE ANTAGONISTS.Hypertension: Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.Injections, Intra-Arterial: Delivery of drugs into an artery.Severity of Illness Index: Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.Anastomosis, Surgical: Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side.Electrocardiography: Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.Lymphatic System: A system of organs and tissues that process and transport immune cells and LYMPH.Contrast Media: Substances used to allow enhanced visualization of tissues.Graft Occlusion, Vascular: Obstruction of flow in biological or prosthetic vascular grafts.Vascular Diseases: Pathological processes involving any of the BLOOD VESSELS in the cardiac or peripheral circulation. They include diseases of ARTERIES; VEINS; and rest of the vasculature system in the body.Cells, Cultured: Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.Pulmonary Circulation: The circulation of the BLOOD through the LUNGS.Vascular Endothelial Growth Factor A: The original member of the family of endothelial cell growth factors referred to as VASCULAR ENDOTHELIAL GROWTH FACTORS. Vascular endothelial growth factor-A was originally isolated from tumor cells and referred to as "tumor angiogenesis factor" and "vascular permeability factor". Although expressed at high levels in certain tumor-derived cells it is produced by a wide variety of cell types. In addition to stimulating vascular growth and vascular permeability it may play a role in stimulating VASODILATION via NITRIC OXIDE-dependent pathways. Alternative splicing of the mRNA for vascular endothelial growth factor A results in several isoforms of the protein being produced.Cerebral Arterial Diseases: Pathological conditions of intracranial ARTERIES supplying the CEREBRUM. These diseases often are due to abnormalities or pathological processes in the ANTERIOR CEREBRAL ARTERY; MIDDLE CEREBRAL ARTERY; and POSTERIOR CEREBRAL ARTERY.Nitric Oxide Synthase Type III: A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in ENDOTHELIAL CELLS.Ischemic Attack, Transient: Brief reversible episodes of focal, nonconvulsive ischemic dysfunction of the brain having a duration of less than 24 hours, and usually less than one hour, caused by transient thrombotic or embolic blood vessel occlusion or stenosis. Events may be classified by arterial distribution, temporal pattern, or etiology (e.g., embolic vs. thrombotic). (From Adams et al., Principles of Neurology, 6th ed, pp814-6)Pia Mater: The innermost layer of the three meninges covering the brain and spinal cord. It is the fine vascular membrane that lies under the ARACHNOID and the DURA MATER.Constriction: The act of constricting.Imaging, Three-Dimensional: The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.Reproducibility of Results: The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.Anoxia: Relatively complete absence of oxygen in one or more tissues.Myocardial Ischemia: A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).Stroke: A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810)Hyperplasia: An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells.Pregnancy: The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.Risk Assessment: The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988)Potassium Chloride: A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.Mice, Inbred C57BLEnzyme Inhibitors: Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.Image Processing, Computer-Assisted: A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.Uterus: The hollow thick-walled muscular organ in the female PELVIS. It consists of the fundus (the body) which is the site of EMBRYO IMPLANTATION and FETAL DEVELOPMENT. Beyond the isthmus at the perineal end of fundus, is CERVIX UTERI (the neck) opening into VAGINA. Beyond the isthmi at the upper abdominal end of fundus, are the FALLOPIAN TUBES.Aneurysm, Dissecting: Aneurysm caused by a tear in the TUNICA INTIMA of a blood vessel leading to interstitial HEMORRHAGE, and splitting (dissecting) of the vessel wall, often involving the AORTA. Dissection between the intima and media causes luminal occlusion. Dissection at the media, or between the media and the outer adventitia causes aneurismal dilation.Heart: The hollow, muscular organ that maintains the circulation of the blood.Gastroepiploic Artery: Abdominal artery that follows the curvature of the stomach. The right gastroepiploic artery is frequently used in CORONARY ARTERY BYPASS GRAFTING; MYOCARDIAL REVASCULARIZATION, and other vascular reconstruction.
Blood vessels: Arteries and veins. Most vascular procedures, including all vascular bypass operations (e.g. coronary artery ... An anastomosis connecting an artery to a vein is also used to create an arteriovenous fistula as an access for hemodialysis. ... such as blood vessels or bowel. For example, an arterial anastomosis is used in vascular bypass and a colonic anastomosis is ...
Musée Fragonard d'Alfort
Human head - blood vessels injected with coloured wax; blue for the veins, red for the arteries. Dissection of a human arm - a ... Human foetuses dancing a jig - three human foetuses, arteries injected with wax. Goat chest - a goat's dissected trunk and head ... red for the arteries). List of museums in Paris Musée Fragonard d'Alfort The Ecorchés by Fragonard Val de Marne article Travel ... teaching exhibit, with muscles and nerves separated, and blood vessels injected with coloured wax (blue for the veins, ...
Glossary of diabetes
Artery Blood vessel with muscular walls on the 'supply side' of the blood circulation, in the network of vessels between the ... Blood vessels Tubes which carry blood around the body. They come in three types, arteries, veins, and capillaries. Capillaries ... Vascular Relating to the body's blood vessels (arteries, veins, and capillaries). Vein Visceral neuropathy Vitrectomy Removing ... Capillary a very small blood vessel. At one end of a capillary is a connection to the body's arteries and at the other end of a ...
Central retinal vein
The lymphatic vessels follow the arteries in a retrograde fashion. The anterior lymphatic vessels drain into the ... The superior and inferior pancreaticoduodenal arteries (from the gastroduodenal artery and SMA respectively) form an ... along the gastroduodenal artery). The posterior lymphatic vessels pass posterior to the head of the pancreas and drain into the ... the arterial supply is from the gastroduodenal artery and its branch the superior pancreaticoduodenal artery. Distal to this ...
Arteries, veins, lymph vessels and nerves travel within the mesentery. The small intestine receives a blood supply from the ... The jejunum and ileum receive blood from the superior mesenteric artery. Branches of the superior mesenteric artery form a ... via the superior pancreaticoduodenal artery and from the superior mesenteric artery via the inferior pancreaticoduodenal artery ... Straight blood vessels known as vasa recta travel from the arcades closest to the ileum and jejunum to the organs themselves. ...
... the blood vessels supplying the nose. These blood vessels include the sphenopalatine, anterior and posterior ethmoidal arteries ... More rarely the maxillary or a branch of the external carotid artery can be ligated. The bleeding can also be stopped by intra- ... The elderly are also more prone to prolonged nose bleeds as their blood vessels are less able to constrict and control the ... The use of silver nitrate to cauterize bleeding blood vessels is common but not very useful for those with more than mild ...
... that air escaping from an artery is replaced with blood that entered by very small vessels between veins and arteries. Thus he ... In contrast to veins, arteries carry blood away from the heart. Veins are less muscular than arteries and are often closer to ... The difference between veins and arteries is their direction of flow (out of the heart by arteries, returning to the heart for ... The Greek physician, Herophilus, distinguished veins from arteries but thought that the pulse was a property of arteries ...
Chronic vasculitis of both large and medium vessels, primarily affecting cranial branches of the arteries arising from the ... Affects medium and small arteries over a diffuse CNS area, without symptomatic extracranial vessel involvement. Patients have ... Seo P, Stone JH (December 2007). "Small-vessel and medium-vessel vasculitis". Arthritis Rheum. 57 (8): 1552-9. doi:10.1002/art. ... Arteriograms are helpful in vasculitis affecting the large and medium vessels but not helpful in small vessel vasculitis. ...
Arteries can also serve as vascular grafts. A surgeon sews the graft to the source and target vessels by hand using surgical ... "ax-bifem" - axillary artery to both femoral artery bypass. Either axillary artery can be used as the origin of the bypass. Used ... Used when there is no inflow to one femoral artery (i.e., the iliac artery on the receiving side is diseased) but there is ... Common bypass sites include the heart (coronary artery bypass surgery) to treat coronary artery disease, and the legs, to treat ...
Male reproductive system
The arteries of the penis are dilated while the veins are compressed so that blood flows into the erectile cartilage under ... It carries with it the ductus deference, that is testicular vessels and nerves, a portion of the abdominal muscle, and lymph ... The penis is supplied by the pudendal artery. The scrotum is a pouch-like structure that hangs behind the penis. It holds and ... The spermatic cord, formed from spermatic artery, vein and nerve bound together with connective tissue passes into the testis ...
... is a group of disorders that destroy blood vessels by inflammation. Both arteries and veins are affected. ... However, there can be some variation in the size of the vessels affected. According to the size of the vessel affected, ... the type of vessel or the size of vessel. Underlying cause. For example, the cause of syphilitic aortitis is infectious ( ... Temporal arteritis Medium vessel: Buerger's disease, Kawasaki disease, Polyarteritis nodosa Small vessel: Behçet's syndrome, ...
... are small arteries that provide blood supply to peripheral nerves. These vessels supply blood to interior parts ... Small vessels like vasa vasorum and vasa nervorum are particularly susceptible to external mechanical compression. A decrease ... injecting a vasoconstrictor close to nerve can reduce perfusion to its supplying vessel, risking ischemic nerve injury. Color ...
Major blood vessels present include the carotid arteries and the jugular veins. Cervical lymph nodes surround the blood vessels ... major blood vessels including the carotid arteries and jugular veins, and the first part of the spinal cord. In anatomy, the ... It contains blood vessels and nerves that supply structures in the head to the body. These in humans include part of the ... The line of the common and the external carotid arteries may be marked by joining the sterno-clavicular articulation to the ...
The vessel usually starts from the level of the twelfth thoracic vertebrae (T12) and extends to the root of the neck. It drains ... Transverse section of thorax, showing relations of pulmonary artery. The arch of the aorta, and its branches. Deep lymph nodes ... The duct extends vertically in the chest and curves posteriorly to the left carotid artery and left internal jugular vein at ... and vessels of the thorax and abdomen (diagrammatic). The position and relation of the esophagus in the cervical region and in ...
Compression of blood vessels may also lead to brain ischemia, by blocking the arteries that carry oxygen to the brain. Tumors ... Ischemia within the arteries branching from the vertebral arteries in the back of the brain may result in symptoms such as ... Ischemia within the arteries branching from the internal carotid artery may result in symptoms such as blindness in one eye, ... Individuals with sickle cell anemia, compressed blood vessels, ventricular tachycardia, plaque buildup in the arteries, blood ...
Arnold Ludwig Gotthilf Heller
Corpus spongiosum penis
Pericardiacophrenic vessels accompany the phrenic nerve in the Middle Mediastinum of the Thorax. The artery is a branch of the ... Pericardiacophrenic veins are the vena comitans of the pericardiacophrenic arteries. ... internal thoracic artery. The vein drains into the internal thoracic(or brachiocephalic)vein. https://books.google.com.pk/books ...
Hughes AD, Sever PS (1989). "Action of fenoldopam, a selective dopamine (DA1) receptor agonist, on isolated human arteries". ... Blood Vessels. 26 (2): 119-27. PMID 2474340. Epstein, Murray MD, "Diagnosis and Management of Hypertensive Emergencies," ... and coronary arteries. to cause a reduction in systemic vascular resistance. Fenoldopam has a rapid onset of action (4 minutes ...
Both the short gastric arteries and the splenic artery supply it with blood. The germinal centers are supplied by arterioles ... There are other openings present for lymphatic vessels and nerves. Like the thymus, the spleen possesses only efferent ... The celiac artery and its branch. Horizontal disposition of the peritoneum in the upper part of the abdomen. Transverse section ... The hilum is the point of attachment for the gastrosplenic ligament, and the point of insertion for the splenic artery and ...
Lymphatic vessels travel only away from the thymus, accompanying the arteries and veins. These drain into the brachiocephalic, ... The arteries supplying the thymus are branches of the internal thoracic, and inferior thyroid arteries, with branches from the ... In the center of the medullary portion there are very few vessels, and they are of minute size. The medulla is the location of ... It lies beneath the sternum, rests on the pericardium, and is separated from the aortic arch and great vessels by a layer of ...
The circulatory system comprises the heart and blood vessels (arteries, veins and capillaries). The heart propels the ... From here, it is pumped into the body's largest artery, the aorta, and then progressively smaller arteries and arterioles until ... Blood vessels carry blood throughout the body, which moves because of the beating of the heart. Venules and veins collect blood ... The blood consists of fluid that carries cells in the circulation, including some that move from tissue to blood vessels and ...
It is prominently expressed in developing arteries but less so in adult vessels. However, its expression is reinduced in ... and balloon-injured arteries". The Journal of Biological Chemistry. 274 (32): 22476-83. doi:10.1074/jbc.274.32.22476. PMID ... balloon-injured vessels and atherosclerotic lesions, notably in intimal vascular smooth muscle cells and endothelial cells. ...
Outline of cardiology
Vasculitis - Inflammation of blood vessels (veins & arteries) with a long list of causes. Aortitis - Inflammation of the aorta ... Carotid artery - Diseases of the carotid arteries: Carotid artery stenosis / carotid artery disease - Narrowing of the carotid ... Coronary artery bypass surgery (CABG): Grafting an artery or vein from elsewhere to bypass a stenotic coronary artery. ... typically branches of the external carotid artery and namely the temporal artery. Occlusion of the ophthalmic artery results in ...
"Multivessel coronary vasospasm mimicking triple-vessel obstructive coronary artery disease". J Invasive Cardiol. 19 (7): E178- ... or near-occlusion of the vessel. It can cause Prinzmetal's angina. It can occur in multiple vessels. Atropine has been used to ... Coronary vasospasm is a sudden, intense vasoconstriction of an epicardial coronary artery that causes occlusion (stoppage) ...
Elastina - Wikipédia, a enciclopédia livre
అండాశయము - వికీపీడియా
... the blood vessels supplying the nose. These blood vessels include the sphenopalatine, anterior and posterior ethmoidal arteries ... More rarely the maxillary or a branch of the external carotid artery can be ligated. The bleeding can also be stopped by intra- ... The use of silver nitrate to cauterize bleeding blood vessels is common but not very useful for those with more than mild ... The elderly are also more prone to prolonged nose bleeds as their blood vessels are less able to constrict and control the ...
... is deoxygenated blood which travels from the peripheral vessels, through the venous system into the right atrium ... Deoxygenated blood is then pumped by the right ventricle to the lungs via the pulmonary artery which is divided in two branches ... Veins and arteries appear similar when skin is removed and are seen directly. ...
Allow organs like arteries and lungs to recoil. Elastic microfibril and elastin. extracellular matrix ... tendon, ligament, skin, cornea, cartilage, bone, blood vessels, gut, and intervertebral disc. ... 171 They are found in the walls of large blood vessels and in certain ligaments, particularly in the ligamenta flava.:173 ...
Pulmonary embolism - Simple English Wikipedia, the free encyclopedia
This kind of embolus blocks the pulmonary artery, which carries blood from the right side of the heart to the lungs. This makes ... Illustration of a blood clot traveling through the blood vessels until it gets stuck. A pulmonary embolism is often caused by a ... it can travel through the blood vessels to the lungs) ...
Senarai reka cipta pada zaman pertengahan Islam Bahasa Melayu, ensiklopedia bebas
ਬੱਚੇਦਾਨੀ - ਵਿਕੀਪੀਡੀਆ, ਇਕ ਅਜ਼ਾਦ ਵਿਸ਼ਵਗਿਆਨਕੋਸ਼
Hypercholesterolemia - Simple English Wikipedia, the free encyclopedia
This is an inflammatory disease of artery walls in which white blood cells invade the vessel wall and become engorged with ... If the blocked artery is to the kidneys, it can cause kidney failure. If the blocked artery is to an arm or leg, they may also ... This can hurt whatever the artery brings blood to. The organ or tissue that the blocked artery brought blood to can even die. ... If the artery brought blood to the heart, people can have angina or a heart attack. A heart attack is also called a myocardial ...
血管 - 维基百科，自由的百科全书
Cardiovascular disease (vessels) (I70-I99, 440-456). Arteries, arterioles. and capillaries. Inflammation. *Arteritis *Aortitis ... "Edinburgh Artery Study: prevalence of asymptomatic and symptomatic peripheral arterial disease in the general population". Int ... It is classically associated with early-stage peripheral artery disease, and can progress to critical limb ischemia unless ... testing is often performed to confirm the diagnosis of peripheral artery disease. ...
Aneurysm in a cerebral artery,. one cause of hypoxic anoxic injury (HAI). ... or an occlusion occurring in the affected blood vessels due to a thrombus (thrombotic stroke) or embolus (embolic stroke). ... increased density in a cerebral artery". AJR Am J Roentgenol. 149 (3): 583-6. doi:10.2214/ajr.149.3.583. PMID 3497548.. ... a large majority of the clinical cases in stroke pathology with the infarct usually occurring in the middle cerebral artery ( ...
... of the carotid arteries. These arteries are the large blood vessels in your neck that feed your brain. Transcranial Doppler ( ... An angiogram will show whether the blood vessel is blocked by a clot, the blood vessel is narrowed, or if there is an ... of the blood vessels inside of your brain. It can also be used to see if you have emboli (blood clots) in your blood vessels. ... A craniotomy is sometimes done to remove blood, abnormal blood vessels, or a tumor. Medications may be used to reduce swelling ...
Circle of Willis
In another variation the anterior communicating artery is a large vessel, such that a single internal carotid supplies both ... Origin of arteries. The left and right internal carotid arteries arise from the left and right common carotid arteries. ... The vertebral arteries arise from the subclavian arteries. The anterior communicating artery connects the two anterior cerebral ... ACA (anterior communicating, Recurrent artery of Heubner, Orbitofrontal artery). *MCA (anterolateral central, Prefrontal artery ...
White blood cell
Histamine is responsible for widening blood vessels and increasing the flow of blood to injured tissue. It also makes blood ... decreased attachment to veins and arteries, decreased uptake by tissues. Leukocytosis may affect one or more cell lines and ... vessels more permeable so neutrophils and clotting proteins can get into connective tissue more easily. Heparin is an ... chiefly responsible for allergic and antigen response by releasing the chemical histamine causing the dilation of blood vessels ...
APS provokes blood clots (thrombosis) in both arteries and veins as well as pregnancy-related complications such as miscarriage ... A documented episode of arterial, venous, or small vessel thrombosis - other than superficial venous thrombosis - in any tissue ... c) Evidence of small vessel thrombosis in at least one organ or tissue and ... when there is simultaneous multi-organ failure with small vessel occlusion). ...
... surgical techniques are used to remove an invasive malignancy that extends to the clitoris. Standard surgical procedures are followed in these cases. This includes evaluation and biopsy. Other factors that will affect the technique selected are age, other existing medical conditions, and obesity. Other considerations are the probability of extended hospital care and the development of infection at the surgical site. The surgery proceeds with the use of general anesthesia, and prior to the vulvectomy/clitoridectomy an inguinal lymphyadenectomy is first done. The extent of the surgical site extends one to two centimeters beyond the boundaries of malignancy. Superficial lymph nodes may also need to be removed. If the malignancy is present in muscular tissue in the region, it is also removed. In some cases, the surgeon is able to preserve the clitoris though the malignancy may be extensive. The cancerous tissue is removed and the incision is closed. Post operative care may ...
নিতম্বাস্থি - উইকিপিডিয়া
Julie Campbell (vascular biologist)
... the innermost coat of blood vessels) thickening in arteries subjected to injury, rather than solely from cells of the artery ... and hoped to eventually use this knowledge to grow artificial arteries and vessels. Campbell has been developing a technique to ... Grow Your Own Arteries' Campbell, Julie. St. George Girls High School, An Academically Selective High School for girls. Notable ... This showed that current strategies to prevent restenosis after angioplasty of blocked arteries may have been targeted in the ...
Hypertensive kidney disease
Cardiovascular disease (vessels) (I70-I99, 440-456). Arteries, arterioles. and capillaries. Inflammation. *Arteritis *Aortitis ... The tissue hardens and thickens which is known as nephrosclerosis. The narrowing of the blood vessels means less blood is ... High blood pressure in the long term can damage the endothelium, commonly known as the blood vessel lining. This leads to a ... Bilateral renal artery stenosis should always be considered as a differential diagnosis for the presentation of HN. Kidney ...
Smoking and pregnancy
Endothelium-derived hyperpolarizing factor
In blood vessels Endothelium-Derived Hyperpolarizing Factor or EDHF is proposed to be a substance and/or electrical signal that ... including mesenteric and tail arteries from rats as well as genital arteries from rabbits. These findings together suggest that ... Its effect varies, depending on the size of the vessel.. Pathways Of EDHFEdit. There are two general pathways that explain ... Although Nitric Oxide (NO) is recognized as the primary factor at level of arteries, increased evidence for the role of another ...
Insect - Simple English Wikipedia, the free encyclopedia
Central retinal artery - Wikipedia
Lee, K. E.; Klein, B. E. K.; Klein, R.; Meuer, S. M. (2007). "Association of Retinal Vessel Caliber to Optic Disc and Cup ... The central retinal artery (retinal artery) branches off the ophthalmic artery, running inferior to the optic nerve within its ... ACA (anterior communicating, Recurrent artery of Heubner, Orbitofrontal artery). *MCA (anterolateral central, Prefrontal artery ... The central retinal artery is formed from the proximal part of the hyaloid artery after atrophy of its distal part has formed ...
Patent US4909258 - Internal mammary artery (IMA) catheter - Google Patents
... a subclavian artery and inflated at a point distal to the junction of the subclavian artery and the internal mammary artery or ... into a subclavian artery and inflated at a point distal to the junction of the subclavian artery or internal mammary artery or ... Method for injecting angiographic dye into an internal mammary artery or graft. A catheter having and a balloon and a proximal ... An angiographic dye is delivered through the proximal port and flows into the internal mammary artery or graft. Method for ...
Blood Vessels and Endothelial Cells - Molecular Biology of the Cell - NCBI Bookshelf
It gives rise to the bodys connective tissues, blood cells, and blood vessels, as well as muscle, kidney, and many other ... Endothelial Cells Line All Blood Vessels. The largest blood vessels are arteries and veins, which have a thick, tough wall of ... A study of the embryo reveals, moreover, that arteries and veins develop from small vessels constructed solely of endothelial ... New blood vessels can develop from the walls of existing small vessels by the outgrowth of endothelial cells, which have the ...
Embolization of a Jejunal Artery Pseudoaneurysm via Collateral Vessels
... Romain Breguet, Lawrence F. Pupulim, and Sylvain Terraz ... J. L. Chenoweth, B. K. Patel, and A. Khosla, "Delayed traumatic pseudoaneurysm of a jejunal artery: a case report," Vascular ... H. Ishimaru, T. Murakami, Y. Matsuoka et al., "Butyl 2-cyanoacrylate injection to occlude splenic artery distal to large ... I. Bavunoglu, F. Ayan, I. Karabicak et al., "Selective jejunal artery pseudoaneurysm embolization in a patient with massive ...
Embolization of a Jejunal Artery Pseudoaneurysm via Collateral Vessels
... Romain Breguet, Lawrence F. Pupulim, and Sylvain Terraz ... We report the case of a jejunal artery pseudoaneurysm that required an access via collateral vessels to accomplish complete ... Visceral artery pseudoaneurysms are rare and only few cases have been reported. They are considered to be life threatening in ...
Blood vessels narrow in peripheral artery disease
Instant Anatomy - Abdomen - Vessels - Arteries - Perineum
Blood Vessels and Coronary Arteries - Our Heart and Cardiovascular System | Coursera
Thinking Outside the Vessel: New Gel to Heal Coronary Arteries | Medgadget
... is working on a radical new theory for the treatment of damaged coronary arteries. He ... Thinking Outside the Vessel: New Gel to Heal Coronary Arteries. June 26th, 2007 Josh Umbehr Cardiology ... is working on a radical new theory for the treatment of damaged coronary arteries. He believes that wrapping arteries in a ... The vessels can also be connected with a plastic tube, or shunt.. However, the surgical trauma can damage the endothelium and ...
Instant Anatomy - Head and Neck - Vessels - Arteries
The fat around our arteries may play key role in keeping the blood vessels healthy
A Michigan State University researcher is adding new evidence to the argument that the fat around our arteries may play an ... important role in keeping those blood vessels healthy. ... Blood Vessel, Blood Vessels, Heart, Heart Attack, Lipids, ... The fat around our arteries may play key role in keeping the blood vessels healthy. *Download PDF Copy ... might play a role in how blood vessels perform. So, they decided to test whether PVAT provides a structural benefit to arteries ...
Patente US6443158 - Percutaneous coronary artery bypass through a venous vessel - Google Patentes
Blood flow is provided to a distal portion of the artery through an adjacent venous vessel so that blood can be provided to ... The bypass system couples a restricted artery to a venous vessel distal of a restriction to provide blood flow through the ... A bypass system for bypassing a restriction in a parent vessel of a mammal to provide blood flow past the restriction. ... Coronary artery 16 includes restriction 22. Veins 20 are arranged adjacent to coronary arteries 16. Coronary arteries 16 carry ...
Cardiovascular Blood Vessels | Artery | Vasodilation
Cardiovascular Blood Vessels - Free download as Word Doc (.doc), PDF File (.pdf), Text File (.txt) or read online for free. ... Cardiovascular IV: Blood Vessels Overview: Blood Vessel Structure & Function Arteries carry blood away from. m heart Veins ... throughout systemic circulation Note steep drop in arterioles Arteries Types of Arteries Elastic Arteries Muscular Arteries ... Pulmonary Circulation Which vessels contain oxygenated / deoxygenated blood?. Pulmonary artery and trunk (deoxy) Pulmonary ...
Observation of blood vessel cells changing function could lead to early detection of blocked arteries | University of Cambridge
... injuries in the blood vessels. Overzealous switching of these cells from the pumping to the repair mode can lead to ... The muscle cells that line the blood vessels have long been known to multi-task. While their main function is pumping blood ... atherosclerosis, resulting in the formation of plaques in the blood vessels ... Observation of blood vessel cells changing function could lead to early detection of blocked arteries ...
Vaping damages arteries and blood vessels like smoking - study
"Stiffening of the arteries can cause damage to the small blood vessels, including capillaries, and puts additional stress on ... Vaping damages the arteries and blood vessel function much like smoking traditional cigarettes, a new study has found. ... The team studied measures of blood vessel function in e-cigarette and dual users who had been using e-cigarettes for at least ... The researchers also found that the cells that line the blood vessels - called endothelial cells - appeared to be equally as ...
Human eye veins vessel blood arteries isolated Vector Image
... blood arteries isolated on white vector. Set of blood veins, image of health red veins illustration. Download a Free Preview or ... Human eye veins vessel blood arteries isolated Vector Image. Human eye veins, vessel, blood arteries isolated on white vector. ... cdn2.vectorstock.com/i/1000x1000/40/91/human-eye-veins-vessel-blood-arteries-isolated-vector-12864091.jpg ... www.vectorstock.com/royalty-free-vector/human-eye-veins-vessel-blood-arteries-isolated-vector-12864091 ...
3-D-printed model of stenotic intracranial artery enables vessel-wall MRI standardization | EurekAlert! Science News
A phantom of a stenotic artery 3-D-printed by the University of Massachusetts using imaging sequences from a patient at the ... 3-D-printed model of stenotic intracranial artery enables vessel-wall MRI standardization A 3-D-printed phantom of a stenotic ... High-resolution or vessel-wall MRI has been used to study the plaque components in vessels in the brain for more than ten years ... 3-D-printed model of stenotic intracranial artery enables vessel-wall MRI standardization. Medical University of South Carolina ...
Rcadia COR Analyzer System Receives Expanded FDA Clearance to Rule Out Coronary Artery Disease in Coronary Branch Vessels
System to assess coronary branch vessels in addition to main coronary arteries in patients with suspected coronary artery ... Rcadia COR Analyzer System Receives Expanded FDA Clearance to Rule Out Coronary Artery Disease in Coronary Branch Vessels. News ... Rcadia COR Analyzer System Receives Expanded FDA Clearance to Rule Out Coronary Artery Disease in Coronary Branch Vessels ... a high negative predictive value for the absence of coronary disease in branch vessels as well as the major coronary arteries ...
Three-vessel coronary artery disease with multi-vessel proximal aneurysms.
At coronary angiography, left anterior descending coronary artery was occluded with distal perfusion by collateral flow, and ... 20443654 - Three-vessel coronary artery disease with multi-vessel proximal aneurysms.. 7930224 - Delineation of extended ... Coronary Artery Disease / complications*, diagnosis*, therapy. Electrocardiography. Humans. Male. Middle Aged. From MEDLINE®/ ... At coronary angiography, left anterior descending coronary artery was occluded with distal perfusion by collateral flow, and ...
Frontiers | GWAS Reveal Targets in Vessel Wall Pathways to Treat Coronary Artery Disease | Cardiovascular Medicine
In this mini-review, we highlight the most recently identified loci that have predicted roles in the vessel wall and provide ... In this mini-review, we highlight the most recently identified loci that have predicted roles in the vessel wall and provide ... the majority of the annotated genes at these loci encode for proteins involved in vessel wall function with no known drugs ... the majority of the annotated genes at these loci encode for proteins involved in vessel wall function with no known drugs ...
Spontaneous triple vessel coronary artery dissection in a patient with effort angina | Heart
Spontaneous triple vessel coronary artery dissection in a patient with effort angina ... Spontaneous triple vessel coronary artery dissection in a patient with effort angina ... SCAD at left anterior descending artery (panels D-F) and left circumflex coronary artery (panels G-I) were also successfully ... Spontaneous coronary artery dissection (SCAD) is a rare but often fatal cause of ischaemic heart disease occurring ...
Association between erectile dysfunction and coronary artery disease. Role of coronary clinical presentation and extent of...
chronic coronary syndrome (CCS), and extent of vessel involvement (single vs. multi-vessel disease). ... single-vessel (OR=2.53; 95% CI, 1.43-4.51; P=0.0002), and CCS vs. ACS (OR=2.32; 95% CI, 1.22-4.41; P=0.01) were independent ... 285 patients with CAD divided into three age-matched groups: group 1 (G1, n=95), ACS and one-vessel disease (1-VD); group 2 (G2 ... Role of coronary clinical presentation and extent of coronary vessels involvement: the COBRA trial.. Montorsi P1, Ravagnani PM ...
Cagent Vascular Announces CE Mark of Serranator, Next Generation Device for Vessel Dilatation in Peripheral Artery Disease...
Cagent Vascular Announces CE Mark of Serranator, Next Generation Device for Vessel Dilatation in Peripheral Artery Disease ... "In addition to the Serranator® Alto device for use in treating diseased SFA and popliteal arteries, we are developing the ... The study (n=25) assessed the Serranator® Alto device in the superficial femoral and popliteal arteries. The subject population ... It is indicated for dilatation of lesions in the iliac, femoral, iliofemoral, and popliteal arteries and for the treatment of ...
Prognostication in 3-Vessel Coronary Artery Disease Based on Left Ventricular Ejection Fraction During Exercise | Circulation
Prognostication in 3-Vessel Coronary Artery Disease Based on Left Ventricular Ejection Fraction During Exercise. Influence of ... Prognostication in 3-Vessel Coronary Artery Disease Based on Left Ventricular Ejection Fraction During Exercise ... Absence of severe exercise-induced ischemia does not identify low-risk patients with three-vessel coronary artery disease. Mayo ... Prognostication in 3-Vessel Coronary Artery Disease Based on Left Ventricular Ejection Fraction During Exercise ...
[email protected]: Targeted single blood vessel occlusion in rodent pial arteries to study astrocyticvascular dysfunction in a mini-stroke...
Targeted_single_blood_vessel_occlusion_in_rodent_pial_arteries_to_study_astrocyticvascular_2012.pdf. 887.4 kB. Adobe PDF. View/ ... Targeted single blood vessel occlusion in rodent pial arteries to study astrocyticvascular dysfunction in a mini-stroke model. ... Targeted single blood vessel occlusion in rodent pial arteries to study astrocytic-vascular dysfunction in a mini-stroke model ... We utilize a method that enables the targeted occlusion of any single blood vessel within the upper 350 μm of mouse neocortex ...
Arterial wall imaging: evaluation with 16-section multidetector CT in blood vessel phantoms and ex vivo coronary arteries
Mean blood vessel wall areas measured in ex vivo coronary arteries with CT and US were 10.9 mm(2) +/- 4.1 and 9.1 mm(2) +/- 3.1 ... Blood vessel and lesion composition phantoms and ex vivo coronary arteries were imaged with 16-section CT. Wall areas of ... Arterial wall imaging: evaluation with 16-section multidetector CT in blood vessel phantoms and ex vivo coronary arteries ... Mean CT numbers in blood vessel wall of ex vivo coronary arteries identified at OCT as predominantly lipid rich, fibrous, and ...
Identifying Vulnerable Plaques in Blood Vessels of the Heart Using a New Imaging Technique | Clinical Research Trial Listing (...
Identifying Vulnerable Plaques in Blood Vessels of the Heart Using a New Imaging Technique ... Atherosclerosis, a condition in which fatty deposits of plaque build up along the inner walls of arteries, is a condition that ... vessel. During angioplasty, imaging devices are often used to take pictures of the inside of blood vessels. The most commonly ... Identifying Vulnerable Plaques in Blood Vessels of the Heart Using a New Imaging Technique Brief description of study. ...
Reactivity of canine isolated epicardial collateral coronary arteries. Relation to vessel structure. | Circulation Research
Reactivity of canine isolated epicardial collateral coronary arteries. Relation to vessel structure.. J A Angus, J E Ward, J J ... Pairs of normal and collateral arteries 2 mm long were mounted in a double-vessel myograph for isometric force recording. ... In each case, the collateral vessels contracted to approximately half the force generated by the normal arteries. When ... Reactivity of canine isolated epicardial collateral coronary arteries. Relation to vessel structure. ...
Sustained vessel dilation induced by increased pulsatile perfusion of porcine carotid arteries in vitro
... and can modify vessel diameter in smaller vessels. To test if PP must exceed a certain range to influence vessel diameter, and ... Sustained vessel dilation induced by increased pulsatile perfusion of porcine carotid arteries in vitro. ... Vessel external diameter was measured by video edge-detection. Vessels partially preconstricted with noradrenaline were ... Mean vessel diameter rose proportionally with PP only once PP exceeded 40 mmHg, with maximal increases of 6-9% at a PP of 120 ...
The genetic basis for altered blood vessel function in disease: large artery stiffening | VHRM
The genetic basis for altered blood vessel function in disease: large artery stiffening. ... Abstract: The progressive stiffening of the large arteries in humans that occurs during aging constitutes a potential risk ... Thus, while age and sex represent important factors contributing to large artery stiffening, the variation in growth- ... Therefore, elucidating the contribution that genetic variation makes to large artery stiffening could ultimately provide the ...
Effect of pravastatin on progression and regression of coronary atherosclerosis and vessel wall changes in carotid and femoral...
... pravastatin on progression and regression of coronary atherosclerosis and vessel wall changes in carotid and femoral arteries: ... Ultrasound examinations of carotid and femoral arteries were performed in 255 patients. Changes in intimal-medial thickness ... there was no correlation with the treatment effect in the coronary arteries. ...
Intervessel (arteries and veins) and heart/vessel selectivities of therapeutically used calcium entry blockers: variable,...
... among the conductance vessels, five of the eight compounds relaxed renal arteries with greater potency than coronary arteries. ... The concentrations of KCl (25 mM for arteries and 50 mM for veins) used gave a similar response in these vessels. Intervessel ... Intervessel (arteries and veins) and heart/vessel selectivities of therapeutically used calcium entry blockers: variable, ... Intervessel (arteries and veins) and heart/vessel selectivities of therapeutically used calcium entry blockers: variable, ...
OcclusionDistalVeinsBloodOphthalmicBranchArteriolesTypes of blood vesselsAneurysmCarotid arteryCapillaries and veinsCollateral VesselsPeripheralEndothelialCircumflexLarge arteriesPulmonary arteriesAnterior inferiMulti-vesselCommon iliacAtheroscleroticAngiographyLeft anterior descendiFemoral ArteryVeins and arteriesVertebral arteryCarry oxygenated bloodCerebralPlaqueEndotheliumBlockageConnective tissueInternal carotidPatients with angiographicallySmall arteriesResistance arteriesRenal arteriesElastic arteriesNetwork of blood vesselsPercutaneousJejunal artery pseudoaneurysmBlood flow
- The ophthalmic artery and its branches. (wikipedia.org)
- The central retinal artery ( retinal artery ) branches off the ophthalmic artery , running inferior to the optic nerve within its dural sheath to the eyeball . (wikipedia.org)
- However it should be remembered that the Cilio retinal artery itself is a branch of the Short Posterior Ciliary Arteries which is derived from the Ophthalmic Artery. (wikipedia.org)
- Arteriosclerosis affects smaller arteries and arterioles. (healthhype.com)
- Raynaud phenomenon is the excessive vasoconstriction of the small arteries and arterioles of the hands and feet. (healthhype.com)
- Arterioles and venules come together in capillary beds and as oxygen is exchanged to surrounding tissue the blood from arteries is passed through the arterioles, through the venules and into the veins to return to the heart. (answers.com)
- Arteries with a diameter of less than 0.1mm are classed as arterioles. (teachmeanatomy.info)
- Regardless of the type of PAH, the elevated pulmonary vascular resistance is associated with remodeling of muscular pulmonary arteries and arterioles that exhibit smooth muscle proliferation, medial hypertrophy, and fibrosis ( Fishman, 1998 ). (aspetjournals.org)
- The arteries divide into smaller branches called arterioles, and the arterioles further break up into smaller branches called capillaries. (hubpages.com)
- The aorta further branches off into the artery, arterioles and capillaries that supply blood to the surrounding tissues. (hubpages.com)
- There are three main classifications of arteries: large or elastic, medium or muscular and small or arterioles. (brighthubeducation.com)
- The smallest arteries, called arterioles, are less than 0.5 mm in diameter, meaning they are so tiny that they are barely visible to the human eye. (brighthubeducation.com)
- As they travel to the renal capsule, the interlobular arteries give off branches, the afferent arterioles, to each glomerulus. (termedia.pl)
Types of blood vessels8
- The second lecture displays the various types of blood vessels and arteries. (coursera.org)
- No. There are three types of blood vessels. (answers.com)
- An artery (pl. arteries ) is one of several types of blood vessels that transport blood around the body. (ivyroses.com)
- This blood is carried by several different types of blood vessels, each of which are specialised to play their role in circulating blood around the body. (teachmeanatomy.info)
- In this article, we shall follow the path that blood takes around the body, examining the structure and function of the major types of blood vessels. (teachmeanatomy.info)
- The arteries, veins and capillaries are types of blood vessels that transport the vital blood throughout the body. (brighthubeducation.com)
- Learn the differences between the types of blood vessels. (brighthubeducation.com)
- Veins, arteries and capillaries are the three types of blood vessels in the circulatory system. (brighthubeducation.com)
- An aneurysm is the bulging of a portion of a blood vessel. (healthhype.com)
- It is an abnormal dilatation, like a balloon, and may affect an intact vessel wall (true aneurysm) or diseased wall (false aneurysm).It is not an actual thickening of the blood vessel wall but is rather a protrusion of the wall. (healthhype.com)
- Aneurysm of an aberrant right subclavian artery: treatment with thoracic aortic stent graft. (radiopaedia.org)
- Percutaneous treatment of aberrant right subclavian artery aneurysm with use of the Amplatzer septal occluder. (radiopaedia.org)
- This is an autopsy report documenting an injury to the parent artery and not the aneurysm as a source of fatal delayed subarachnoid hemorrhage following flow diversion. (bmj.com)
- We present an autopsy case following flow diversion and light coiling where it was the artery and not the aneurysm that caused the fatal complication. (bmj.com)
- The patient had a smoking history of 30 pack-years and, of significance, had remotely undergone clipping of an unruptured anterior communicating artery aneurysm. (bmj.com)
- Anteroposterior and lateral views (top row) and 3D reconstructed multiplanar images (bottom row) from a right vertebral artery injection showing the large 2 cm eccentric aneurysm involving the middle third of the basilar artery trunk. (bmj.com)
- The rationale of this approach was vessel reconstruction with the flow diverter and gradual aneurysm thrombosis with the help of coils. (bmj.com)
- They help define a narrowing of the large arteries, calcium deposits on their walls, the aneurysm. (million-tips.com)
- That compression of a carotid artery may induce a change in cerebral function was apparently known by the ancient Greeks. (annals.org)
- Various techniques for vessel wall imaging have been developed and introduced to differentiate and analyze atherosclerotic plaques in the cervical carotid artery. (j-stroke.org)
- Although this evaluation is still one of the most important methods for assessing intracranial and carotid artery disease, it is limited in comparison with advanced imaging techniques. (j-stroke.org)
- Vessel wall imaging-including magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound (US) with color Doppler-can assess the morphology of atherosclerotic plaques, arterial walls, and surrounding structures in the cervical carotid artery. (j-stroke.org)
- Flow diverter devices are increasingly used for endovascular treatment of internal carotid artery aneurysms. (springer.com)
- The pipeline embolization device (PED, eV3/Covidien, Irvine, CA) is a flow diverter device approved for use in the treatment of large or giant wide-necked intracranial aneurysms arising from the internal carotid artery between the petrous and hypophyseal segments. (springer.com)
- Major branches of the internal carotid artery, especially the ophthalmic artery, were often covered by the PED during treatment of ophthalmic segment aneurysms. (springer.com)
- Running parallel to the windpipe, right in the front, are some large blood vessels, such as the carotid artery . (healthline.com)
- each divides into two branches, the internal carotid artery and the external carotid artery. (jove.com)
Capillaries and veins3
- These vessels include the arteries, capillaries and veins. (livestrong.com)
- What are the similarities between arteries and capillaries and veins? (answers.com)
- They are where veins and arteries meet (arteries carry red blood, which comes from the heart, moving toward the capillaries, and veins carry blue blood, which heads from the capillaries toward the heart). (answers.com)
- The activities of Ras and ERK-1,-2 were markedly increased in collateral vessels of the shunt experiment, and infusions of L-NAME and L-NNA strongly inhibited MAPK activity as well as shunt-induced arteriogenesis. (biomedsearch.com)
- In each case, the collateral vessels contracted to approximately half the force generated by the normal arteries. (ahajournals.org)
- When partially contracted by K+ (25-30 mM), the collateral vessels had a greater range of relaxation and similar sensitivity to acetylcholine, sodium nitroprusside, and cromakalim compared with normal arteries. (ahajournals.org)
- When the coronary arteries narrow to the point that blood flow to the heart muscle is limited (coronary artery disease), collateral vessels may enlarge and become active. (clevelandclinic.org)
- Arterial ulcers, also known as ischemic ulcers, are the result of peripheral artery disease. (wbaltv.com)
- The Serranator ® is one of a family of peripheral artery disease (PAD) technologies which incorporates proprietary Serration Technology to an angioplasty balloon. (businesswire.com)
- Peripheral artery disease (PAD) is one of the leading causes of morbidity, affecting more than 200 million people worldwide. (vasculardiseasemanagement.com)
- A study in the Jan. 3 issue of the Annals of Internal Medicine shows that walking three times a week, even in an unsupervised exercise program, can significantly improve walking ability and slow progression of peripheral artery disease (PAD). (innovations-report.com)
- Millions of peripheral artery disease patients don't receive adequate medications needed to reduce the risk of heart attack, stroke and death, finds research published in the Journal of the American Heart Association. (medindia.net)
- Atherosclerotic alterations in peripheral vessels (IMT, plaque volume, plaque morphology) will be measured with ultrasound (IMT measurements and 3D quantitative plaque volumetry), whereas atherosclerotic alterations in coronary arteries will be tested with cardiac computertomography (CT) (coronary artery calcium score, calcium volume score, plaque morphology). (happidoc.com)
- The primary endpoint of the planned study will be the correlation of the atherosclerotic progression between coronary arteries and peripheral arteries (carotids, femoral arteries). (happidoc.com)
- Also plaque morphology will be compared between coronary arteries and peripheral vessels. (happidoc.com)
- Almost all tissues depend on a blood supply, and the blood supply depends on endothelial cells , which form the linings of the blood vessels. (nih.gov)
- If it were not for endothelial cells extending and remodeling the network of blood vessels, tissue growth and repair would be impossible. (nih.gov)
- It is hoped that by blocking the formation of new blood vessels through drugs that act on endothelial cells, it may be possible to block the growth of tumors (discussed in Chapter 23). (nih.gov)
- The amounts of connective tissue and smooth muscle in the vessel wall vary according to the vessel's diameter and function, but the endothelial lining is always present. (nih.gov)
- A study of the embryo reveals, moreover, that arteries and veins develop from small vessels constructed solely of endothelial cells and a basal lamina: pericytes, connective tissue and smooth muscle are added later where required, under the influence of signals from the endothelial cells. (nih.gov)
- As a result, the embryonic blood vessels develop microaneurysms-microscopic pathological dilatations-that eventually rupture, as well as other abnormalities, reflecting the importance of signals exchanged in both directions between the pericytes and the endothelial cells. (nih.gov)
- Once a vessel has matured, signals from the endothelial cells to the surrounding connective tissue and smooth muscle continue to play a crucial part in regulating the vessel's function and structure. (nih.gov)
- He believes that wrapping arteries in a biodegradable gel containing cultured endothelial cells may help prevent damaging inflammation and promote healing. (medgadget.com)
- The researchers also found that the cells that line the blood vessels - called endothelial cells - appeared to be equally as damaged whether people used e-cigarettes, cigarettes or both. (com.pk)
- These vessels are very thin to enable gas exchange - it is usually just a single endothelial cell layer in thickness (similar to the intima), lacks a media layer and there may be some supporting connective tissue. (healthhype.com)
- characterized a signaling pathway that is specific to the endothelial cells that line cerebral arteries. (sciencemag.org)
- In endothelial cells in cerebral arteries, locally produced ROS oxidized lipids, which triggered calcium influx through the ion channel TRPA1. (sciencemag.org)
- The progression from systemic activation of the immune system to local inflammation in coronary vessels is evidenced by endothelial cell activation, up-regulation of adhesion molecules, and histopathological evidence of inflammation in affected coronary arteries ( 14 , 15 , 16 , 17 ). (jimmunol.org)
- The intervessel selectivity indexes of the calcium entry blockers amlodipine, felodipine, isradipine, nicardipine, nifedipine, nitrendipine, diltiazem and verapamil were assessed by determining the potency of these compounds [concentration decreasing tension developed by KCl in blood vessels by 50% (bvlC50)] to relax several KCl-precontracted blood vessels (femoral, jugular and saphenous veins and left anterior descending and left circumflex coronary and renal arteries) precontracted with KCl. (aspetjournals.org)
- The rest of the right coronary artery and its main branch, the posterior descending artery, together with the branches of the circumflex artery, run across the surface of the heart's underside, supplying the bottom portion of the left ventricle and back of the septum. (clevelandclinic.org)
- It passes downward along the brim of the pelvis and gives off two large branches-an inferior epigastric artery and a deep circumflex iliac artery. (guwsmedical.info)
- In a 2008 meta-analysis, the sensitivity was highest in the left main artery and lowest (85%) in the circumflex artery. (medscape.com)
- The progressive stiffening of the large arteries in humans that occurs during aging constitutes a potential risk factor for increased cardiovascular morbidity and mortality, and is accompanied by an elevation in systolic blood pressure and pulse pressure. (dovepress.com)
- While the underlying basis for these changes remains to be fully elucidated, factors that are able to influence the structure and composition of the extracellular matrix and the way it interacts with arterial smooth muscle cells could profoundly affect the properties of the large arteries. (dovepress.com)
- Conclusions: Whereas isoflurane has a heterogeneous vasomotor effect in rat coronary arteries, constricting the small vessels and dilating the large ones, halothane dilates both the small and large arteries. (asahq.org)
- This trunk is very short, and it only spans about two inches (or about five centimeters) before it branches off into the right and left pulmonary arteries , which are the arteries that carry deoxygenated blood from the heart to the lungs. (study.com)
- Furthermore, we compared the functional effects of SERT inhibitors and 5-HT receptor antagonists against 5-HT-induced vasoconstriction of pulmonary arteries. (aspetjournals.org)
- The possibility that SERT inhibitors may similarly increase 5-HT activation in pulmonary arteries requires investigation. (aspetjournals.org)
- It is the 5-HT 1B and 5-HT 2A receptors that mediate contraction of human, rat, and mouse pulmonary arteries (MacLean et al. (aspetjournals.org)
- The pulmonary artery branches off from the right ventricle and further divides into the left and right pulmonary arteries that enter the left and the right lungs respectively. (hubpages.com)
- Three-vessel coronary artery disease with multi-vessel proximal aneurysms. (biomedsearch.com)
- To investigate the prevalence of erectile dysfunction (ED) in patients with CAD according to clinical presentation, acute coronary syndrome (ACS) vs. chronic coronary syndrome (CCS), and extent of vessel involvement (single vs. multi-vessel disease). (nih.gov)
- Patients with multi-vessel coronary artery disease (CAD) are selected for percutaneous coronary interventions (PCI) or surgical revascularisation. (eurekamag.com)
- In patients with multi-vessel CAD and borderline lesions, FFR measurement identifies those, who can be treated conservatively with a good long-term outcome, and prevents unnecessary PCI. (eurekamag.com)
- However, there is limited data comparing CMR and FFR in patients with multi-vessel disease. (biomedcentral.com)
- There is good concordance between perfusion CMR and FFR for the identification of myocardial ischemia in patients with multi-vessel disease. (biomedcentral.com)
- However, some discrepancy remains and at this stage it is unclear whether CMR underestimates or FFR overestimates the number of ischemic segments in multi-vessel disease. (biomedcentral.com)
- However, there are limited data on their comparability in defining ischemic segments in patients with multi-vessel disease. (biomedcentral.com)
- It is unknown, whether the use of a high-resolution perfusion technique such as CMR leads to improved concordance for the identification of ischemic segments in multi-vessel disease in comparison with FFR. (biomedcentral.com)
- The aim of this study was to compare the extent of myocardial ischemia based on CMR and FFR in patients with angiographically defined multi-vessel disease. (biomedcentral.com)
- In addition to the reduced operating time, faster recovery and overall improved patient outcomes associated with minimally invasive procedures , using the automated connector device allows me to perform multi-vessel cardiac bypass surgery with reliable and consistent anastomoses on patients who benefit tremendously from a minimally-invasive approach. (bestheartsurgeoninindia.com)
- The internal iliac artery arises at the bifurcation of the common iliac artery , opposite the lumbosacral articulation, and, passing downward to the upper margin of the greater sciatic foramen , divides into two large trunks, an anterior and a posterior. (wikipedia.org)
- Each common iliac artery descends a short distance and divides into an internal (hypogastric) branch and an external branch. (guwsmedical.info)
- Researchers have confirmed that these cells become much more numerous in damaged blood vessels and in atherosclerotic plaques, as would be expected from switching cells. (cam.ac.uk)
- A 3-D-printed phantom of a stenotic artery is enabling a global collaborative to standardize vessel-wall MRI protocols for intracranial atherosclerotic disease, laying the groundwork for multisite trials of new therapies. (eurekalert.org)
- High-resolution or vessel-wall MRI has been used to study the plaque components in vessels in the brain for more than ten years and has the potential to elucidate the underlying pathology of intracranial atherosclerotic disease (ICAD), the leading cause of stroke worldwide, as well as to gauge patient risk and inform clinical trials of new therapies. (eurekalert.org)
- In patients with atherosclerotic renal artery stenosis (RAS), vessel wall characteristics and remodeling was compared with left main trunk coronary artery disease (CAD) using virtual histology and gray scale intravascular ultrasound imaging. (onlinejacc.org)
- Analysis included assessment of vessel area and atherosclerotic plaque area of the main renal artery or left main trunk. (onlinejacc.org)
- These narrow patches are called atherosclerotic plaques (or an atheroma) and are often described as hardening or thinning of the vessels. (rnib.org.uk)
- Its positive role is obvious, until the formation of atherosclerotic plaques, polluting the walls of blood vessels. (million-tips.com)
- Well established Tibetan tincture recipe increases the elasticity of blood vessels, purifies the blood, dissolves atherosclerotic plaques. (million-tips.com)
- 3 times a day is cleaning the blood vessels with garlic and lemon 100 g anti atherosclerotic plaques. (million-tips.com)
- The clearance is the third for the COR Analyzer System, a unique clinical decision support tool that automatically detects significant (50 percent and over) stenotic lesions in coronary arteries from Coronary CT Angiography (cCTA) studies. (prnewswire.com)
- The company's first FDA-cleared product, the COR Analyzer® System, provides fully automated, real-time analysis of Coronary CT angiography to enable the practical application of cCTA in detecting significant coronary artery disease. (prnewswire.com)
- This case illustrates coronary angiography and intravascular ultrasound images in a patient with SCAD involving all three vessels and treated by stenting. (bmj.com)
- Selective coronary angiography revealed SCAD involving all three vessels. (bmj.com)
- Control group (C, n=95) was composed of patients with suspected CAD who were found to have entirely normal coronary arteries by angiography. (nih.gov)
- At a baseline study visit, participants will first undergo an angiography procedure, in which x-ray pictures will be taken of the heart blood vessels. (centerwatch.com)
- Vessel segmentation in X-Ray Coronary Angiography (XCA) images, which is used for the diagnosis and treatment of anomalies in coronary vessels, has been an intriguing topic in recent years. (alliedacademies.org)
- Completion angiography revealed significantly sluggish flow in all 3 below-the-knee vessels. (vasculardiseasemanagement.com)
- Given the involvement of all three vessels and the appearance of the angiography, this sluggish flow was felt to be a slow-flow phenomenon rather than thrombo-embolism. (vasculardiseasemanagement.com)
- Angiography, a cardiac catheterization can detect lock, the narrowing of the coronary arteries. (million-tips.com)
- What is the accuracy of coronary computed tomography angiography (CCTA) in coronary artery disease (CAD)? (medscape.com)
- The majority of studies (with the exception of the Coronary Evaluation Using Multidetector Spiral Computed Tomography Angiography using 64 Detectors [CORE study) indicate that a negative CCTA can effectively rule out obstructive coronary artery disease. (medscape.com)
Left anterior descendi1
- At least 24 weeks later, we examined the reactivity of surface collateral arteries (approximately 500 micron i.d.) to a range of constrictor and dilator agents and compared them with normal left anterior descending coronary arteries of similar size branching away from the collateral zone. (ahajournals.org)
Veins and arteries12
- Peritumoral veins and arteries were both functional, as detected by intravenous dye injection. (biomedcentral.com)
- Immunostaining of the red-colored vessels again identified the clustered growth of enlarged collecting lymphatics, veins, and arteries in the vicinity of these spontaneously arising tumors. (biomedcentral.com)
- How do capillaries relate to veins and arteries and what happens to the capillaries? (answers.com)
- How are capillaries differ from veins and arteries? (answers.com)
- Capillaries differ from veins and arteries in that they are smaller in diameter. (answers.com)
- Where do the veins and arteries meet? (answers.com)
- What does the capillaries do for the veins and arteries? (answers.com)
- Why do most tissues have a greater supply of capillaries than veins and arteries? (answers.com)
- A small vessel that connects to the veins and arteries? (answers.com)
- Capillaries connect the veins and arteries together. (answers.com)
- Veins and arteries run very closely together at the back of the eye and cross over each other. (rnib.org.uk)
- Veins and arteries. (adobe.com)
Carry oxygenated blood3
- Another means of studying the cerebral circulation-manual compression of the carotid arteries-has received somewhat less comment. (annals.org)
- The planned treatment was flow diversion with loose coil packing which was successfully performed using a Pipeline Flex device deployed from the basilar to the left posterior cerebral artery. (bmj.com)
- We report here a case of a 5-year-old boy who underwent bilateral superficial temporal artery-middle cerebral artery bypass combined with unilateral encephaloduroarteriosynangiosis who demonstrated near-complete resolution of moyamoya vessels and a dramatic improvement in cerebral perfusion as measured by xenon-enhanced CT. (elsevier.com)
- Wang, MY & Steinberg, GK 1996, ' Rapid and near-complete resolution of moyamoya vessels in a patient with moyamoya disease treated with superficial temporal artery-middle cerebral artery bypass ', Pediatric Neurosurgery , vol. 24, no. 3, pp. 145-150. (elsevier.com)
- Cerebral arteries must maintain constant blood flow to the brain even though blood pressure fluctuates constantly. (sciencemag.org)
- In turn, this calcium influx activated a potassium-permeable channel, resulting in dilation of cerebral arteries. (sciencemag.org)
- 4-Hydroxy-nonenal, a metabolite of lipid peroxidation, also increased TRPA1 sparklet frequency and dilated cerebral arteries. (sciencemag.org)
- These data suggest that in the cerebral circulation, lipid peroxidation metabolites generated by ROS activate Ca 2+ influx through TRPA1 channels in the endothelium of cerebral arteries to cause dilation. (sciencemag.org)
- In the search for a more reproducible focal ischemic stroke model in the rat, we systematically interrupted blood flow to the right middle cerebral artery (MCA) territory by transient ligation of the right MCA, and both right and left common carotid arteries (CCAs) in succession. (elsevier.com)
- The anterior cerebral artery supplies most of the superior-medial parietal lobes and portions of the frontal lobes with fresh blood. (healthline.com)
- If blood flow is blocked in the anterior cerebral arteries, paralysis or sensory deficits may occur, or even a stroke. (healthline.com)
- Blockages of these arteries can result in cerebral dementia and speech difficulties. (healthline.com)
- The anterior cerebral artery originates at the internal carotid and travels at a right angle with penetrating branches supplying blood to various parts of the brain. (healthline.com)
- The anterior cerebral artery is a component of the circle of Willis, an interconnected section of arteries in the brain. (healthline.com)
- Essential components of workup in posterior cerebral artery (PCA) stroke depend on the patient's age, stroke risk factors, and prior medical history. (medscape.com)
- Unenhanced head computed tomography (CT) scan demonstrating a subacute L posterior cerebral artery (PCA) infarct. (medscape.com)
- The 3-D printed ICAD phantom mimics both the stenotic vessel and its plaque components, including the fibrous cap and the lipid core. (eurekalert.org)
- This study will use standard IVUS imaging and OFDI to examine vulnerable plaques within blood vessels of the heart and to evaluate any changes that occur over time in heart blood vessels and plaque. (centerwatch.com)
- Conclusions The current study demonstrates in humans that plaque composition as assessed by VH intravascular ultrasound has an important role of adaptive vessel enlargement, and it is related to renal artery remodeling in RAS in a pattern similar to CAD. (onlinejacc.org)
- Sometimes, part of a vessel wall plaque which forms in a larger vessel may break off. (rnib.org.uk)
- In Euphemia's case, hardened plaque and calcium almost completely blocked the artery at the front wall of her left ventricle. (upmc.com)
- This treatment uses a catheter with a spinning diamond tip to safely scrape away plaque and calcium from inside an artery. (upmc.com)
- The term "plaque" refers to the deposition of cholesterol and other substances on the walls of blood vessels, eventually compromising circulation. (medicinenet.com)
- Cardiovascular disease occurs when plaque obstructs the coronary arteries that supply blood to the heart. (medicinenet.com)
- Blood clots also form on areas of plaque and can obstruct the arteries. (medicinenet.com)
- The product is designed to be wrapped around the artery at the site of the procedure and to release biochemical factors to promote the healing of the vessel's inner lining, or endothelium. (medgadget.com)
- Morphological and morphometric analyses revealed that the collateral arteries had thickened adventitia, thinner media, ruptured internal elastic laminae, and a thick neointima lined by endothelium. (ahajournals.org)
- In a separate group of vessels (n = 10), the endothelium was mechanically removed. (ovid.com)
- Similar responses were obtained in vessels with and without a functional endothelium, at both mean pressures. (ovid.com)
- This allows blood to flow around the blocked artery to another artery nearby or to the same artery past the blockage, protecting the heart tissue from injury. (clevelandclinic.org)
- This type of heart disease involves blockage to three of the main arteries that bring blood to the heart. (upmc.com)
- He also placed a drug-coated stent to help hold Euphemia's artery open and prevent re-blockage. (upmc.com)
- Complete blockage of a coronary artery leads to an interruption of blood flow to the heart, or a heart attack. (medicinenet.com)
- Both heart attack and stroke involve the interruption of blood flow to an organ due to a blockage within an artery. (medicinenet.com)
- A heart attack results from a blocked coronary artery, while a stroke results from blockage of an artery in the brain. (medicinenet.com)
- The largest blood vessels are arteries and veins, which have a thick, tough wall of connective tissue and and many layers of smooth muscle cells ( Figure 22-22 ). (nih.gov)
- Thin layer of connective tissue containing lymphatics, nerves and vasa vasorum (Blood vessels that supply blood to the artery - arteries need blood to survive just like any other tissue! (teachmeanatomy.info)
Patients with angiographically1
- Blood flow occurs through the kidneys from the renal arteries and is filtered to extract waste. (livestrong.com)
- among the conductance vessels, five of the eight compounds relaxed renal arteries with greater potency than coronary arteries. (aspetjournals.org)
- While "normal" renal arteries were described as entering the kidney through its hilum, the accessory renal arteries might enter the renal artery through the hilum or through the surfaces of the kidney . (termedia.pl)
- The first description of accessory renal arteries was given in the sixteenth century. (termedia.pl)
- In 1564, Eustachi wrote about accessory renal arteries: "These arteries are end-arteries, they are not supplemental or accessory as they are frequently called in textbooks. (termedia.pl)
- In 1969, Poisel and Spängler divided additional renal arteries according to the areas of kidney which they penetrate - accessory, supplementary and supernumerary renal arteries enter through the renal hilum, while aberrant renal arteries penetrate an area of the kidney other than its hilum. (termedia.pl)
Network of blood vessels2
- Long-term outcomes of percutaneous coronary intervention in grafts and native vessels in coronary artery bypass grafting patients with diabetes mellitus. (medworm.com)
- However, sluggish flow was noted in all three below-the-knee vessels ( Video 1: See https://www.vasculardiseasemanagement.com/content/video-supplement-no-reflow-phenomenon-below-knee-vessels-after-percutaneous ). (vasculardiseasemanagement.com)
Jejunal artery pseudoaneurysm1
- by signaling this information to the surrounding cells, they enable the blood vessel to adapt its diameter and wall thickness to suit the blood flow. (nih.gov)
- A bypass system for bypassing a restriction in a parent vessel of a mammal to provide blood flow past the restriction. (google.es)
- Stable angina, or 'angina pectoris', is the chest pain or discomfort that can result from the impaired blood flow through the blood vessels in the heart muscle, and usually occurs after exercise or stress. (nature.com)
- PAD often causes leg pain because of impaired blood flow in the arteries. (innovations-report.com)
- Blood pressure is measured by the blood flow in the arteries. (brighthubeducation.com)
- It is unclear, however, whether these devices mechanically block blood flow in the ophthalmic artery. (springer.com)
- Our results showed no significant change in ophthalmic artery blood flow after pipeline embolization device deployment. (springer.com)
- A low number indicates that the arteries in the legs might be narrowed, which impedes blood flow and can indicate a high risk of heart disease and stroke. (medindia.net)
- The blood is rerouted through the healthy vessel, and blood flow is restored to the heart muscle. (bestheartsurgeoninindia.com)