Layers of Heart Wall

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Coloring Image
Histological section of the heart wall stained with H&E, showing its three main layers. The innermost layer is the endocardium, lining the cardiac chambers. The thick middle layer is the myocardium, composed of cardiac muscle fibers arranged in bundles. The outer layer is the epicardium, which includes the visceral serous pericardium, epicardial adipose tissue, and an epicardial coronary vessel embedded within the fat. The image illustrates the layered structure of the heart wall and its association with connective tissue and vasculature.
Histology Image
University of British Columbia, K. Pinder

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