atrioventricular valve


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Related to atrioventricular valve: atrioventricular node, tricuspid valve

atrioventricular (AV) valve

a valve in the heart through which blood flows from the atria to the ventricles. The valve between the left atrium and left ventricle is the mitral (bicuspid) valve; the right AV valve is the tricuspid valve.
References in periodicals archive ?
Histological organization of the right and left atrioventricular valves of the chicken heart and their relationship to the atrioventricular Purkinje ring and the middle bundle branch.
The length of right atrioventricular (AV) valve and left cusp of left atrioventricular valve (AV) were longer in chick embryos belonging to control group as compared to those in experimental group but this was not statistically significant.
Figure-2: Day 10 control chick heart showing two cusps of left atrioventricular valve (1), interatrial septum (IAS), interventricular septum (IVS), right atrioventricular valve (2), left atrium (LA), right atrium (RA ) left ventricle (LV ) and right ventricle (RV) (low magnification - 4x) Hematoxylin and Eosin staining.
This study present a right atrioventricular valve bicuspid, whit a clearly septal component with one valvule, and a mural component with a wide anterior valvule and a small anteroseptal commissural cusp.
The structure of left atrioventricular valve apparatus is composed by the mitral annulus, mitral valve leaflets, chordae tendineae and papillary muscles and has been studied elsewhere (Silverman & Hurst, 1968; Lam et al.
Traumatic injuries of heart reported before are atrioventricular valve insufficiency, aortic insufficiency, VSD, atrial septal defect, coronary artery injury, hemopericardium, cardiac rupture and cardiac contusion (3, 4).
So, it became possible to inspect all the cardiac cavities, atrioventricular valves, other tumoral formations, tumor fragments and atrioventricular valve abnormalities.
They are particularly associated with atrial septal defects and with severe atrioventricular valve regurgitation.