a membranous fold in a canal or passage that prevents backward flow of material passing through it.
a semilunar valve
that separates the left ventricle and the aorta; it opens with end diastole, causing the second heart sound
bicuspid aortic valve a congenital anomaly of the aortic valve, caused by incomplete separation of two of the three cusps; it is generally asymptomatic early in life but is predisposed to calcification and stenosis later on.
cardiac v's valves that control flow of blood through and from the heart.
coronary valve a valve at the entrance of the coronary sinus into the right atrium.
flail mitral valve
a mitral valve
having a cusp that has lost its normal support (as in ruptured chordae tendineae) and flutters in the blood stream.
Heimlich valve a small one-way valve used for chest drainage, emptying into a flexible collection device; the valve prevents return of gases or fluids into the pleural space. The Heimlich valve is less than 13 cm (5 inches) long and facilitates patient ambulation; it can be used in many patients instead of a traditional water seal drainage system.
ileocecal valve (ileocolic valve) the valve guarding the opening between the ileum and cecum.
the cardiac valve
between the left atrium and left ventricle, usually having two cusps (anterior and posterior). Called also bicuspid valve
Valves of the heart. The right heart pumps the venous blood into the lungs. The oxygenated blood returns from the lungs into the left atrium and is propelled by the left ventricle into the aorta. The insets show closed valves: the tricuspid valve has three leaflets, whereas the mitral valve has two leaflets. The aortic and pulmonary artery valves have three leaflets and resemble one another except for the fact that the coronary arteries originate from behind the cusps in the aorta. From Damjanov, 1996.
posterior urethral valve
any of various types of congenital folds across the proximal part of the male urethra
near the seminal colliculus
, the most common cause of urethral obstruction in male infants.
) the pocketlike cardiac valve
that protects the orifice between the right ventricle and the pulmonary artery.
pyloric valve a prominent fold of mucous membrane at the pyloric orifice of the stomach.
the cardiac valve
guarding the opening between the right atrium and right ventricle.
valve of vein (venous v's) any of the small cusps or folds found in the tunica intima of many veins, serving to prevent backflow of blood.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
a·or·tic valve [TA]
the valve between the left ventricle and the ascending aorta, consisting of three fibrous semilunar cusps (valvules), located in the adult in anterior, right posterior, and left posterior positions; they are named, however, in accordance with their embryonic derivation in which the anteriorly located cusp is the right cusp (above which the right coronary artery arises), the left posteriorly positioned cusp is designated as the left cusp (above which the left coronary artery arises), and the right posteriorly positioned cusp is designated as the posterior or noncoronary cusp.
Farlex Partner Medical Dictionary © Farlex 2012
aortic valve Anatomy A 3-leaflet valve at the base of the aorta which opens during systole–left ventricular contraction, then shuts during distole–atrial contraction preventing the backwash of oxygenated blood from the aorta into the ventricle
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
a·or·tic valve (ā-ōr'tik valv) [TA]
The valve between the left ventricle and the ascending aorta, consisting of three fibrous semilunar cusps (valvules). They are named in accordance with their embryonic derivation: the anteriorly located cusp is the right cusp (above which the right coronary artery arises), the left posteriorly positioned cusp is the left cusp (above which the left coronary artery arises), and the right posteriorly positioned cusp is the posterior or noncoronary cusp.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
aortic valve The three-cusp valve at the origin of the AORTA that allows easy movement of blood from the left VENTRICLE of the heart into the aorta but prevents its backward flow.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
A fold in the channel leading from the aorta to the left ventricle of the heart. The aortic valve directs blood flow that has received oxygen from the lungs to the aorta which transmits blood to the rest of the body.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
a·or·tic valve (ā-ōr'tik valv) [TA]
The valve between the left ventricle and the ascending aorta, consisting of three fibrous semilunar cusps (valvules).
Medical Dictionary for the Dental Professions © Farlex 2012
Patient discussion about aortic valve
Q. How does alcohol affect someone who has been diagnosed with aortic valve stenosis? My brother has been diagnosed with aortic valve stenosis and also is a smoker and does drink alcohol on the weekends. He knows that he should stop smoking but what about the effects of alcohol? Does this also contribute to his stenosis?
A. Alcohol changes blood pressure and speed of the heart- that is not a good idea if you have an Aortic stenosis. Could probably makes things worst. I would avoid alcohol… but he should ask GP.More discussions about aortic valve
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