Knowing of our Heart 1
The heart wall is composed of three layers: a Superficial epicardium, a middle myocardium, and a deep endocardium. All three layers are richly supplied with blood vessels.
Epicardium was explained as before and now is myocardium "muscle heart" , composed mainly of cardiac muscle, forms the bulk of the heart it is the layer that actually contracts. The connective tissue fibers form a dense network, called the fibrous skeleton of the heart, that reinforces the myocardium internally and anchors the cardiac muscle fibers.
The endocardium (" inside the heart") is a glistening white sheet of endothelium tissue layer. resting on a thin connective tissue. Located on the inner myocardial surface, its lines the heart chambers and covers the connective tissue skeleton of the valves.
Epicardium was explained as before and now is myocardium "muscle heart" , composed mainly of cardiac muscle, forms the bulk of the heart it is the layer that actually contracts. The connective tissue fibers form a dense network, called the fibrous skeleton of the heart, that reinforces the myocardium internally and anchors the cardiac muscle fibers.
The endocardium (" inside the heart") is a glistening white sheet of endothelium tissue layer. resting on a thin connective tissue. Located on the inner myocardial surface, its lines the heart chambers and covers the connective tissue skeleton of the valves.
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