heart valve

(redirected from Atrioventricular valves)
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Related to Atrioventricular valves: Semilunar valves

heart valve

[′härt ‚valv]
(anatomy)
Flaps of tissue that prevent reflux of blood from the ventricles to the atria or from the pulmonary arteries or aorta to the atria.
References in periodicals archive ?
Avian heart anatomy differs in many aspects from its mammalian counterpart, but the RVOT is similar in both taxonomic groups, (10) except that the singular right atrioventricular valve functionally replaces the supraventricular crest.
Blood and serous cysts in the atrioventricular valves of the bovine heart," Veterinary Pathology, vol.
Stenosis of the atrioventricular valves is probably the result of partial fusion, while atresias of the atrioventricular valves probably results from complete fusion of that tissue (Van Mierop & Kutsche, 1990).
So, it became possible to inspect all the cardiac cavities, atrioventricular valves, other tumoral formations, tumor fragments and atrioventricular valve abnormalities.
The atrioventricular valves could be visualized 96% of the time, the aorta and pulmonary artery 95% of the time, and the inferior and superior vena cava 76% of the time.
But, left circumflex coronary artery took a course behind the atrioventricular valves and totally occluded proximally with TIMI 1 flow (Fig.
Interference of the device with the cava or pulmonary veins or with the atrioventricular valves was checked echocardiographically once deployment was complete.