Myofibrils

Kolliker described conspicuous "granules" aligned between the striated myofibrils of muscle, and Flemming observed "filaments" in the cytoplasm of other cell types. In 1890 Altmann discovered a method of staining these structures with fuchsin ...

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... contracts, the width of the A-band remains unchanged. 2-When a muscle contracts, the width of the sarcomeres shrink, and the length of the myofibrils decreases. 3-The length of the thick filaments in a sarcomere corresponds to the width of the A-band. 4-A sarcomere is a portion of a muscle ...

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... contracts, the width of the A-band remains unchanged. 2-When a muscle contracts, the width of the sarcomeres shrink, and the length of the myofibrils decreases. 3-The length of the thick filaments in a sarcomere corresponds to the width of the A-band. 4-A sarcomere is a portion of a muscle ...

See entire post