Aortic sinus: An aortic sinus is one of the anatomic dilations of the ascending aorta, which occurs just above the aortic valve. These widenings are between the wall of the aorta and each of the three cusps of the aortic valve.Antonio Maria ValsalvaEmissary veins: The emissary veins connect the extracranial venous system with the intracranial venous sinuses. They connect the veins outside the cranium to the venous sinuses inside the cranium.Underwood's septa: In anatomy, Underwood's septa (or maxillary sinus septa, singular septum)Maestre-Ferrín L, et al. Maxillary sinus septa: a systematic review.Paranasal sinuses: Sinus}}Carotid sinus: In human anatomy, the carotid sinus (or carotid bulb) is a dilated area at the base of the internal carotid just superior to the bifurcation of the common carotid at the level of the superior border of thyroid cartilage. The carotid sinus is sensitive to pressure changes in the arterial blood at this level.Mucocele: A mucocele is any dilatation (typically pathologic) with accumulation of mucus. Examples include:Coronary artery anomalySick sinus syndromeTraumatic aortic ruptureReplantation: Replantation has been defined by the American Society for Surgery of the Hand as "the surgical reattachment of a body part, most commonly a finger, hand or arm, that has been completely cut from a person's body".http://www.Transesophageal echocardiogramSinonasal undifferentiated carcinoma: Sinonasal undifferentiated carcinoma, abbreviated SNUC, is a rare aggressive type of cancer that arises from epithelium or lining of the nose or sinuses.Interbeat interval: Interbeat interval is a scientific term used in the study of the mammalian heart.Pelvic floorCephalgiaphobia: Cephalgiaphobia is fear of headache, or fear of the next headache. It is derived from cephalgia and phobia.Aortic insufficiencyAortic valve replacementAtrial septal defectThunderclap headacheAutomated ECG interpretation: Automated ECG interpretation is the use of artificial intelligence and pattern recognition software and knowledge bases to carry out automatically the interpretation, test reporting, and computer-aided diagnosis of electrocardiogram tracings obtained usually from a patient.Sinoatrial arrest: Sinoatrial arrest (also known as sinus arrest or sinus pause) is a medical condition wherein the sinoatrial node of the heart transiently ceases to generate the electrical impulses that normally stimulate the myocardial tissues to contract and thus the heart to beat. It is defined as lasting from 2.Dense artery sign: In medicine, the dense artery sign or hyperdense artery sign is a radiologic sign seen on computer tomography (CT) scans suggestive of early ischemic stroke. In earlier studies of medical imaging in patients with strokes, it was the earliest sign of ischemic stroke in a significant minority of cases.Aortic pressure: Central aortic blood pressure (CAP or CASP) is the blood pressure at the root of aorta. Studies have shown the importance of central aortic pressure and its implications in assessing the efficacy of antihypertensive treatment with respect to cardiovascular risk factors.AortographyVena contracta: frame|right|Vena contractaOrthostatic hypotensionBaroreflex: The baroreflex or baroreceptor reflex is one of the body's homeostatic mechanisms that helps to maintain blood pressure at nearly constant levels. The baroreflex provides a rapid negative feedback loop in which an elevated blood pressure reflexively causes the heart rate to decrease and also causes blood pressure to decrease.Left atrial enlargement: Left atrial enlargement (LAE) or left atrial dilation refers to enlargement of the left atrium (LA) of the heart, and is a form of cardiomegaly.CystoceleGreat cerebral vein: The great cerebral vein is one of the large blood vessels in the skull draining the cerebrum (brain). It is also known as the "vein of Galen" (VG), named for its discoverer, the Greek physician Galen.Baroreceptor: Baroreceptors (or archaically, pressoreceptors or baroceptors) are sensors located in the blood vessels of all vertebrate animals. They sense the blood pressure and relay the information to the brain, so that a proper blood pressure can be maintained.Tropic acidNational Association For Continence: National Association For Continence (NAFC) is a national, private, non-profit organization dedicated to improving the quality of life of people with incontinence, voiding dysfunction, and related pelvic floor disorders. NAFC's purpose is to be the leading source for public education and advocacy about the causes, prevention, diagnosis, treatments, and management alternatives for incontinence.Ventricular septal defectPneumatocele: A pneumatocele is a cavity in the lung parenchyma filled with air that may result from pulmonary trauma during mechanical ventilation.Tilt table test: A tilt table test, occasionally called upright tilt testing, is a medical procedure often used to diagnose dysautonomia or syncope. Patients with symptoms of dizziness or lightheadedness, with or without a loss of consciousness (fainting), suspected to be associated with a drop in blood pressure or positional tachycardia are good candidates for this test.Hybrid cardiac surgery: A hybrid cardiac surgical procedure in a narrow sense is defined as a procedure that combines a conventional surgical part (including a skin incision) with an interventional part, using some sort of catheter-based procedure guided by fluoroscopy (or other, e.g.Riding-like sittingAtrioventricular septal defectHair-grooming syncope: Hair-grooming syncope (also known as hair-combing syncope) is a form of syncope (a fainting disorder) associated with combing and brushing one's hair. It is most typically seen in children aged five to sixteen.Familial atrial fibrillation: Familial atrial fibrillation is an autosomal dominant heart condition that causes disruptions in the heart's normal rhythm. This condition is characterized by uncoordinated electrical activity in the heart's upper chambers (the atria), which causes the heartbeat to become fast and irregular.Ventricular aneurysm: Ventricular aneurysms are one of the many complications that may occur after a heart attack (myocardial infarction). They usually arise from a patch of weakened tissue in a ventricular wall, which swells into a bubble filled with blood.RectoceleUrodynamic testingGuttural pouch: In the equids (horse family) and some species such as the desert hyrax, the guttural pouch is one of a pair of air chambers in the neck just behind the skull and below the ears. These pouches are on both sides of the head and are air-filled out-pouchings or evaginations to the Eustachian tube, leading into the nasopharynx.Intravascular ultrasoundInferior petrosal sinus sampling: Inferior petrosal sinus sampling is a relatively new approach to the diagnosis of Cushing's disease.Withdrawal reflex: The withdrawal reflex (nociceptive or flexor withdrawal reflex) is a spinal reflex intended to protect the body from damaging stimuli. It is polysynaptic, causing stimulation of sensory, association, and motor neurons.DimefoxSpirometryVibroacoustic stimulation: Vibroacoustic stimulation (VAS), sometimes referred to as fetal vibroacoustic stimulation or fetal acoustic stimulation test (FAST), is the application of a vibratory sound stimulus to the abdomen of a pregnant woman to induce FHR (fetal heart rate) accelerations. The presence of FHR accelerations reliably predicts the absence of fetal metabolic acidemia.Pseudoaneurysm: A pseudoaneurysm, also known as a false aneurysm, is a hematoma that forms as the result of a leaking hole in an artery. Note that the hematoma forms outside the arterial wall, so it is contained by the surrounding tissues.Ventricular dyssynchrony: In cardiology, Ventricular dyssynchrony is a difference in the timing, or lack of synchrony, of contractions in different ventricles in the heart. Large differences in timing of contractions can reduce cardiac efficiency and is correlated with heart failure.TachycardiaPinhole occluder: A pinhole occluder is an opaque disk with one or more small holes through it, used by ophthalmologists, orthoptists and optometrists to test visual acuity. The occluder is a simple way to focus light, as in a pinhole camera, temporarily removing the effects of refractive errors such as myopia.Albert Dorfman: Albert Dorfman (1916–1982) was an American biochemical geneticist, notable for discovery of the cause of Hurler's syndrome.Hyperintensity