This membrane is known as the endocardium. From the inside out, the heart's layers go as so : endocardium, myocardium, epicardium (visceral pericardium), pericardial cavity, and parietal pericarium.
Mitral Valve
heart
There are two Atrioventricular Valves in the heart. The first one, on the right side of the heart, is called the Tricuspid Valve (it has three 'flaps'). On the left side, the Atrioventricular Valve is called the Bicuspid or Mitral Valve (it has two 'flaps')
The left Mitral atrioventricular valve is bicuspid (two flaps).
From the closure of the two flaps of the mitral valve in the left ventricle
Endocardium
It's endocardium.
Mitral Valve
heart
There are two Atrioventricular Valves in the heart. The first one, on the right side of the heart, is called the Tricuspid Valve (it has three 'flaps'). On the left side, the Atrioventricular Valve is called the Bicuspid or Mitral Valve (it has two 'flaps')
The left Mitral atrioventricular valve is bicuspid (two flaps).
The tricuspid valve is a valve situated at the opening of the right atrium of the heart into the right ventricle and that resembles the mitral valve in structure but consists of 3 triangular membranous flaps. :)
The trucuspid valve is a valve between the right atrium and the right ventricle. Blood flows through the valve from atrium to ventricle where is is then pumped out to the lungs. It is so named because there are 3 flaps on the valve that seal before the pump of the heart.
The antrioventricular valve has two valves. The bicuspid valve has 2 flaps and in located in the right ventricle/right atrium. The tricuspid valve has 3 flaps and is located in the left ventricle/left atrium.
the bicuspid valve.
From the closure of the two flaps of the mitral valve in the left ventricle
Bi-cuspid means having two cusps or flaps. It is used in relation to the heart valves. Mitral valve is a bicuspid valve.