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The A-band is the dark band which corresponds with the myosin filaments in skeletal muscle. Skeletal muscle has an alternating dark and light striated appearance under magnification due to the arrangement of the myosin and actin filaments and the Z-line. The A-band corresponds with the myosin filaments. See I-band.

This page created 05 Sep 2011 21:07
Last updated 17 Jul 2016 00:00

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