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*  Juxtaglomerular cell
They are specialized smooth muscle cells mainly in the walls of the afferent arterioles, and some in the efferent arterioles, ...
*  Afferent arterioles
The afferent arterioles branch from the renal artery, which supplies blood to the kidneys. The afferent arterioles later ... The afferent arterioles are a group of blood vessels that supply the nephrons in many excretory systems. They play an important ... If the afferent arterioles are constricted then the blood pressure in the capillaries of the kidneys will drop. Efferent ... The macula densa cell can also increase the blood pressure of the afferent arterioles by decreasing the synthesis of adenosine ...
*  Straight arterioles of kidney
Each straight arteriole has a hairpin turn in the medulla and carries blood at a very slow rate - two factors crucial in the ... The straight arterioles are peritubular capillaries, specifically those that surround the loop of Henle. On a histological ... On the descending portion of the straight arterioles, NaCl and urea are reabsorbed into the blood, while water is secreted. On ... For the intestinal structure, see Vasa recta (intestines) In the blood supply of the kidney, the straight arterioles of kidney ...
*  Arteriole
Pulmonary arterioles are a noteworthy exception as they vasodilate in response to high oxygen. Brain arterioles are ... An arteriole is a small-diameter blood vessel in the microcirculation that extends and branches out from an artery and leads to ... Arterioles have muscular walls (usually only one to two layers of smooth muscle) and are the primary site of vascular ... Arterioles receive autonomic nervous system innervation and respond to various circulating hormones in order to regulate their ...
*  Efferent arteriole
The efferent arterioles are blood vessels that are part of the urinary tract of organisms. Efferent (from Latin ex + facere) ... The efferent arterioles form from a convergence of the capillaries of the glomerulus, and carry blood away from the glomerulus ... The efferent arterioles of the juxtamedullary glomeruli are much different. They do break up, but they form bundles of vessels ... The efferent arterioles of the undifferentiated cortical glomeruli are the most complex. Promptly on leaving the glomerulus ...
*  Endometrial stromal sarcoma
Prominent arterioles. Angiolymphatic invasion common. Up to 10-15 mitotic figures per 10 HPF in most active areas. Tongue-like ...
*  Cannon-Bard theory
... contraction of arterioles; dilatation of bronchioles; increased levels of blood sugar; sweating; widening of the pupils and ...
*  Beta-2 adrenergic receptor
Dilate arterioles to skeletal muscle. In the normal eye, beta-2 stimulation by salbutamol increases intraocular pressure via ...
*  Necrotizing vasculitis
Affects capillaries, venules, or arterioles. Thought to be part of a group that includes granulomatosis with polyangiitis since ... or arterioles. Therefore, complement will be low with histology showing vessel inflammation with immune deposits. Vasculitis ... including venules and arterioles. Produces granulomatous inflammation of the respiratory tracts and necrotizing, pauci-immune ...
*  Hemodynamics
Immediately following the arterioles are the capillaries. Following the logic observed in the arterioles, we expect the blood ... This is why[citation needed] the arterioles have the highest pressure-drop. The pressure drop of the arterioles is the product ... In the arterioles blood pressure is lower than in the major arteries. This is due to bifurcations, which cause a drop in ... The high resistance observed in the arterioles, which factor largely in the ∆P is a result of a smaller radius of about 30 µm. ...
*  Robert Hollenhorst
"Significance of bright plaques in the retinal arterioles". JAMA. 178: 23-29. doi:10.1001/jama.1961.03040400025005. PMID ...
*  Erythromelalgia
ICD-10-CM Diagnosis Codes > Diseases of the circulatory system (I00-I99) > Diseases of arteries, arterioles and capillaries ( ... ICD-9-CM Diagnosis Codes > Diseases of the circulatory system (390-459) > Diseases of arteries, arterioles, and capillaries ( ...
*  Hollenhorst plaque
N Hollenhorst RW (1961). "Significance of bright plaques in the retinal arterioles". Jama 1961. 178: 23-29. doi:10.1001/jama. ...
*  Conjunctiva
In some subjects, arterioles and venules can be seen to run parallel with each other. Paired arterioles are generally smaller ... The bulbar conjunctival microvasculature contains arterioles, meta-arterioles, venules, capillaries, and communicating vessels ... Hypertension is associated with an increase in the tortuosity of bulbar conjunctival blood vessels and capillary and arteriole ...
*  Arteriolar vasodilator
... s are substances that preferentially dilate arterioles. When used on people with certain heart conditions ...
*  Tubuloglomerular feedback
Efferent arterioles appear to play a lesser role; experimental evidence supports both vasoconstriction and vasodilation, with ... The muscle tension in the afferent arteriole is modified based on the difference between the sensed concentration and a target ... Constricting the smooth muscle cells in the afferent arteriole, results in a reduced concentration of chloride at the MD. TGF ... Adenosine constricts the afferent arteriole by binding with high affinity to the A1 receptors a Gi/Go. Adenosine binds with ...
*  Vascular resistance
Another determinant of vascular resistance is the pre-capillary arterioles. These arterioles are less than 100 µm in diameter. ... Because resistance is inversely proportional to the fourth power of vessel radius, changes to arteriole diameter can result in ... The major determinant of vascular resistance is small arteriolar (known as resistance arterioles) tone. These vessels are from ... Adenosine causes vasodilation in the small and medium-sized resistance arterioles (less than 100 µm in diameter). When ...
*  Nonsteroidal anti-inflammatory drug
... angiotensin II also constricts the afferent arteriole into the glomerulus in addition to the efferent arteriole it normally ... Prostaglandins normally dilate the afferent arterioles of the glomeruli. This helps maintain normal glomerular perfusion and ... Since NSAIDs block this prostaglandin-mediated effect of afferent arteriole dilation, particularly in kidney failure, NSAIDs ... which removes angiotensin II's vasoconstriction of the efferent arteriole) and a diuretic (which drops plasma volume, and ...
*  Myogenic mechanism
The myogenic mechanism is how arteries and arterioles react to an increase or decrease of blood pressure to keep the blood flow ... This is especially relevant in arterioles of the body. When blood pressure is increased in the blood vessels and the blood ...
*  Renovascular hypertension
... located on the afferent arteriole wall). This leads to renin secretion that causes the angiotensinogen conversion to ...
*  Venule
The middle layer is poorly developed so that venules have thinner walls than arterioles. They are extremely porous so that ... Arteriole Woods, Susan (2010). Cardiac Nursing. New York: Lippincotts. p. 955. ISBN 9780781792806. MeSH A07.231.432.952. ... the blood stream and enter the lymph nodes via these specialized venules when an infection is detected.Compared with arterioles ...
*  Spleen
The germinal centers are supplied by arterioles called penicilliary radicles. The spleen is unique in respect to its ...
*  Biofluid dynamics
Arteries, arterioles, capillaries, venules, and veins make up the vasculature. The cardiovascular system circulates about 5 ... circulations take the blood through large arteries first and then branches into smaller arteries before reaching arterioles and ...
*  Resistance artery
Human arteries or arterioles that are around 0.2 mm or smaller contribute to creation of the blood flow resistance and are ... Resistance arteries are usually arterioles or end-points of arteries. Having thick muscular walls and narrow lumen they ... arterioles, pre- and postcapillaries. Metabolic vessels - capillaries Capacitance vessels - veins Particular feature of ... Arteriole Cardiovascular Physiology By William R. Milnor. ...
*  Artery
... down to the arterioles. The arterioles supply capillaries, which in turn empty into venules. The very first branches off of the ... Arterioles have the greatest collective influence on both local blood flow and on overall blood pressure. They are the primary ... Arterioles help in regulating blood pressure by the variable contraction of the smooth muscle of their walls, and deliver blood ... Systemic arteries deliver blood to the arterioles, and then to the capillaries, where nutrients and gases are exchanged. After ...