GROSS ANATOMY

Detailed explanation-1: -There are two atrioventricular valves, Mitral (Bicuspid valve) and Tricuspid valve. These valves maintain the flow of blood from atrium to ventricle and do not allow the backflow of blood from ventricles to atrium.

Detailed explanation-2: -The atrioventricular (AV) valves prevent backflow of blood into the atria during ventricular contraction (systole), and the aortic/pulmonary (semilunar) valves prevent backflow of blood into the ventricles during ventricular relaxation (diastole).

Detailed explanation-3: -The AV valves allow blood to flow from the atria to the ventricles, but not in the reverse direction. The right AV valve is called the tricuspid valve, the left is called the mitral valve.

Detailed explanation-4: -The atrioventricular (AV) valves separate the atria from the ventricles on each side of the heart and prevent backflow of blood from the ventricles into the atria during systole.

Detailed explanation-5: -The AV valves are anchored to the wall of the ventricle by chordae tendineae (heartstrings), small tendons that prevent backflow by stopping the valve leaflets from inverting. The chordae tendineae are inelastic and attached at one end to the papillary muscles and at the other end to the valve cusps.