The left ventricle.
Note: Mitral valve = bicuspid valve = aortic valve. And tricuspid valve = right atrioventricular valve. Blood flows through the aortic valve --> aorta --> arteries --> arterioles --> capillaries in the great toe --> venules --> veins --> superior and inferior venacavae --> right atrium --> tricuspid valve. This above is incorrect. The Mitral valve is the bicuspid valve but it is NOT the aortic valve. So blood flows from the Mitral valve to the left ventricle to the aortic valve to the aorta. The rest appears correct.
Heart attacks that damage the structures that support the mitral valve are a common cause of mitral valve insufficiency. Myxomatous degeneration can cause a "floppy" mitral valve that leaks.
The mitral, or bicuspid valve
The mitral valve is closed when the left ventricle is contracting.
Mitral stenosis is the medical term meaning narrowing of the mitral valve.
Mitral valve
Mitral stenosis
Mitral regurgitation is backflow of blood through the mitral valve.
Twice as many women as men are affected by mitral valve stenosis. About 60% of patients with mitral valve stenosis have had rheumatic fever.
Mitral valve
The mitral and bicuspid valves are the same thing.
left atrioventricular valve and left mitral valve