here is a list.....

The antrioventricular valve has two valves. The bicuspid valve has two flaps and in located in the right ventricle/right atrium. The tricuspid valve has three flaps and is located in the left ventricle/left atrium.


The left atrioventricular valve (AV) can also be called the bicuspid valve and the right atrioventricular valve can also be called the tricuspid vavle. If you think back, a word with the prefix "uni" means one or single, a word that has "bi" attached to the front of it usually means two or double, and similarly, the prefix "tri" refers to three or triple.

So to answer your question, the left atrioventricular valve, which is also known as the bicuspid valve has two cusps and the right atrioventricular valve, which is also known as the tricuspid valve has three cusps.