GENERAL HISTOLOGY

Detailed explanation-1: -The muscle layer of the heart is termed the myocardium and is made up of cardiomyocytes. The myocardium is found in the walls of all four chambers of the heart, though it is thicker in the ventricles and thinner in the atria.

Detailed explanation-2: -The human body contains three different kinds of muscle tissue: skeletal, smooth, and cardiac. Only cardiac muscle tissue, comprising cells called myocytes, is present in the heart.

Detailed explanation-3: -There are four chambers that make up the heart – two on the left side and two on the right. The two small upper chambers are the atria. The two larger lower chambers are the ventricles. These left and right sides of the heart are separated by a wall of muscle called the septum.

Detailed explanation-4: -Cardiac muscles are involuntary and are found only in the heart. Cardiac muscle tissue is an extremely specialized form of muscle tissue. They can contract without outside stimulation.