MEDICAL PHYSIOLOGY

Detailed explanation-1: -Muscular walls, called septa or septum, divide the heart into two sides. On the right side of the heart, the right atrium and ventricle work to pump oxygen-poor blood to the lungs. On the left side, the left atrium and ventricle combine to pump oxygenated blood to the body.

Detailed explanation-2: -The interventricular septum, also known as the ventricular septum, refers to the triangular wall of cardiac tissue that separates the left and right ventricles (i.e., the lower chambers) of the heart. The entire interventricular septum can be further divided into two parts: a muscular portion and a membranous portion.

Detailed explanation-3: -The atrial septum is the tissue wall which separates the two upper chambers of human heart into right and left atrium. The atrial septum is a blade-shaped structure with a concave anterior margin that reflects the curve of the ascending aorta.