17.1C: Layers of the Heart Walls - Medicine LibreTexts
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WEBJan 17, 2023 · The heart wall is comprised of three layers, the epicardium (outer), myocardium (middle), and endocardium (inner). These tissue layers are highly specialized and perform different functions. During ventricular contraction, the wave of depolarization from the SA and AV nodes moves from within the endocardial wall …
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