Interventricular septum

Definition

The interventricular septum is a thick wall dividing the left and right ventricles of the heart, preventing the mixing of oxygen-rich and oxygen-poor blood. It consists of an upper membranous part and a lower muscular part, playing a crucial role in the heart's function.

Related terms

Ventricles: The two lower chambers of the heart that receive blood from the atria above them and contract to push blood into circulation.

Oxygen: rich blood - Blood that has been oxygenated in the lungs and is pumped from the left ventricle to be distributed throughout the body.

Oxygen: poor blood - Blood returning to the heart after circulating through the body, containing lower levels of oxygen, which enters the right ventricle to be sent to the lungs for oxygenation