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Medical Term:

actin filament


Definition: one of the contractile elements in muscular fibers and other cells; in skeletal muscle, the actin filaments are about 7.5 nm wide and 1 mcm long, and attach to the transverse Z filaments.

Synonym(s): thin filament

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.