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Nov 3, 2023 · The epicardium is the outermost layer of the heart. It is actually the visceral layer of the serous pericardium, which adheres to the myocardium of the heart. Histologically, it is made of mesothelial cells, the same as the parietal pericardium.
- Heart Valves Anatomy
Under normal conditions, the apex of the heart is located in...
- Pericardium
Between the layers is the pericardial cavity, a potential...
- 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 cusps are pushed open to allow blood flow in one...
- 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
The heart is located in the mediastinum within a region...
- 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.
Nov 10, 2024 · Myocardium:The myocardium is the thick, muscular middle layer of the heart wall and is composed of cardiomyocytes (heart muscle cells). The myocardium is responsible for the contractile force of the heart. It is thickest in the left ventricle, which must generate enough force to pump blood throughout the entire body.
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 · Histologically, the myocardium is primarily composed of cardiac muscle cells (cardiomyocytes) (arranged in a group called myofibers) and a few fibroblast cells. The cardiomyocytes are connected with each other through the intercalated discs. Anatomically, it is the thickest layer of the heart wall.
Oct 20, 2024 · The innermost layer of the heart wall, the endocardium, is joined to the myocardium with a thin layer of areolar connective tissue. The endocardium lines the chambers where the blood circulates and covers the heart valves.
The myocardium, or cardiac muscle, is the thickest section of the heart wall and contains cardiomyocytes, the contractile cells of the heart. As a type of muscle tissue, the myocardium is unique among all other muscle tissues in the human body.
