MICROANATOMY

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: -Myocardium – a thick, muscular middle layer that contracts and relaxes to pump blood around of your heart.

Detailed explanation-3: -Myocardium: Muscular Middle Layer of the Heart Wall The myocardium is the middle layer of the heart and composes most of the heart’s tissue. The myocardium is composed of muscular tissue and generates the contractions that control the pumping of the heart.

Detailed explanation-4: -Cardiac muscle makes up the thick middle layer of the heart and is surrounded by a thin outer layer called the epicardium or visceral pericardium and an inner endocardium.