Atrial muscle — Free Physiology Illustration | GPAI | GPAI

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Atrial muscle — Free Physiology Illustration | GPAI | GPAI

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Atrial muscle

Atrial muscle

Physiology

Atrial muscle

Atrial myocardium shown as a thin sheet or band of pink-red cardiac muscle tissue composed of relatively slender branching fibers. The tissue has fine striations or cross-banding, central nuclei within the cells, and visible dark intercalated discs. It appears somewhat finer, lighter, and less bulky than ventricular muscle, with a slightly curved, tapered sheet-like contour and compact clipart-style presentation.

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