Heart muscle

Credit: ASA THORESEN/SCIENCE PHOTO LIBRARY

Caption: colour enhanced scanning electron micrograph of cardiac muscle tissue. This involuntary tissue is found only in the walls of the heart and plays an important role in the contraction of the atria and ventricles of the heart. Its fibers have cross-striations and contain many nuclei. Enhancement of 9g8966.

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Keywords: anatomy, body, cardiac, cardiac muscle tissue, cardiac tissue, circulatory system, heart, heart muscle, heart muscle tissue, heart tissue, hearts, human, micrograph, micrographs, muscle, muscle tissue, muscles, sem, tissue

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