Muscle fiber — Free Biology Illustration | GPAI | GPAI

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Muscle fiber — Free Biology Illustration | GPAI | GPAI

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Muscle fiber

Muscle fiber

Biology

Muscle fiber

A single isolated skeletal muscle fiber shown as a long elongated cylindrical cell with mostly parallel sides and blunt to rounded ends. The cell is pink to red in color and multinucleate, with several oval nuclei positioned near the outer edge beneath the plasma membrane. Its interior is filled with many parallel myofibrils running lengthwise, producing clear striations with visible light and dark banding or faint cross-striations along the fiber. The overall appearance is that of a striated skeletal muscle cell with organized contractile machinery.

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