MEDICAL PHYSIOLOGY

Detailed explanation-1: -Cardiac muscle tissue is a specialized, organized type of tissue that only exists in the heart. It is responsible for keeping the heart pumping and blood circulating around the body. Cardiac muscle tissue, or myocardium, contains cells that expand and contract in response to electrical impulses from the nervous system.

Detailed explanation-2: -The right and left sides of the heart are further divided into two top chambers called the atria, which receive blood from the veins, and two bottom chambers called ventricles, which pump blood into the arteries. The atria and ventricles work together, contracting and relaxing to pump blood out of the heart.

Detailed explanation-3: -The human heart works like a pump sending blood around your body to keep you alive. It’s a muscle, about the size of your fist, in the middle of your chest tilted slightly to the left.