Biology Time!!! - The Heart Valves

The heart consist of two pairs of valves:

1. Atrioventricular valves  -  these valves guard the opening between  the atria and ventricles.  The atrioventricular valve on the right side is called the tricuspid valve and the atrioventricular valve on the left is called the bicuspid or mitral valve.

2. Semilunar valves -  guards the exits of the ventricles to the arterial  system .  The semilunar valve  located at the exit of the right ventricle is called  the pulmonary valve and the semilunar valve  located at exit of the left ventricle is called the aortic valve.

 The human heart