Identify the structure of the human heart which is a valve between the right atrium and the right ventricle of the heart that directs blood that needs oxygen to the lungs

The structure being described is the tricuspid valve. The right atrium is one of the two atria of the heart which function by receiving blood entering the heart, it is located to the right of the left atrium and superior to the much larger and more muscular right ventricle. Between the right atrium and right ventricle is a one way valve known as the tricuspid valve.