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Nov 3, 2023 · The myocardium is functionally the main constituent of the heart and the thickest layer of all three heart layers. It is a muscle layer that enables heart contractions. Histologically, the myocardium is comprised of cardiomyocytes .
- Heart Valves Anatomy
The atrialis layer is the most cranial and is directed...
- Pericardium
The pericardium is the membrane that encloses the heart and...
- Oral Cavity
Oral cavity. The oral cavity is situated anteriorly on the...
- Conduction System
Here it lies in the subepicardiac layer of the heart, often...
- Structure, Valves, Coronary Vessels
The heart is a muscular organ that pumps blood around the...
- Cardiac Muscle Tissue Histology
Cardiac muscle tissue, also known as myocardium, is a...
- Ventricles
The outer surface of the heart is marked by depressions...
- Atria
Basic anatomy of the heart. The heart is at the center of...
- Heart Valves Anatomy
- Regina Bailey
- Epicardium. Epicardium (epi-cardium) is the outer layer of the heart wall. It is also known as visceral pericardium as it forms the inner layer of the pericardium.
- Myocardium. Myocardium (myo-cardium) is the middle layer of the heart wall. It is composed of cardiac muscle fibers, which enable heart contractions. The myocardium is the thickest layer of the heart wall, with its thickness varying in different parts of the heart.
- Endocardium. Endocardium (endo-cardium) is the thin inner layer of the heart wall. This layer lines the inner heart chambers, covers heart valves, and is continuous with the endothelium of large blood vessels.
The middle layer of the heart wall is the myocardium—the muscle tissue of the heart and the thickest layer of the heart wall. It is composed of cardiac muscle cells, or cardiomyocytes. Cardiomyocytes are specialized muscle cells that contract like other muscle cells, but differ in shape.
Oct 30, 2023 · The myocardium is the middle muscular layer of the heart. It is the thickest layer which lies between the single-cell endocardium layer, and the outer epicardium, which makes up the visceral pericardium that surrounds and protects the heart.
- Content Manager
- 14 min
Aug 4, 2023 · Myocardium (Middle Layer of Heart) Myocardium is the middle thickest muscular layer made up of cardiomyocytes. It is responsible for the contraction and relaxation actions of the heart.
Oct 20, 2024 · The middle and thickest layer is the myocardium. Composed primarily of cardiac muscle, with small amounts of endomysium, the contractile force of the myocardium propels blood forward through the pulmonary and systemic circuits.
Aug 8, 2023 · Cardiac muscle (or myocardium) makes up the thick middle layer of the heart. It is one of three types of muscle in the body, along with skeletal and smooth muscle. The myocardium is surrounded by a thin outer layer called the epicardium (AKA visceral pericardium) and an inner endocardium.
