thick filament


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Related to thick filament: Thin filament

my·o·sin fil·a·ment

one of the contractile elements in skeletal, cardiac, and smooth muscle fibers; in skeletal muscle, the filament is about 15 nm thick and 1.5 mcm long.
Synonym(s): thick filament

thick filament

In a sarcomere, one of the collection of contractile filaments made primarily of myosin, seen microscopically.
References in periodicals archive ?
The M-line material in the center of the A band [ILLUSTRATION FOR FIGURE 1 OMITTED] attaches the thick filaments to the basal lamina and thus could also transmit forces to the basal lamina; however, it is unlikely to contribute significantly to the compressive forces acting on the basal lamina.
A short thick filament was reported near the NW limb and also an 'L' shaped filament near the NE limb on Feb 8.
Early dominance by green and brown filaments persisted over 230 d into the experiment, and red filaments (rather than thick filaments and blades) still dominated at the end of the year [ILLUSTRATION FOR FIGURE 4B OMITTED].
When the fiber receives a signal to contract, the thick filaments pull the combs together by "rowing" against the thin filaments.