Pulmonary valve

Definition

The pulmonary valve is a one-way valve located between the right ventricle and the pulmonary artery that prevents blood from flowing back into the heart once it has been ejected into the pulmonary circulation. It opens to allow deoxygenated blood to be pumped from the heart to the lungs for oxygenation.

Related terms

Right Ventricle:

The chamber of the heart that pumps deoxygenated blood into the pulmonary artery through the pulmonary valve.

Pulmonary Artery:

The artery that carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation.

Tricuspid Valve:

A valve situated at the opening of the right atrium of the heart into the right ventricle and ensures blood flow from atrium to ventricle without backflow