extrafusal fibers

extrafusal fibers
ordinary muscle fibers, as opposed to the intrafusal fibers of the muscle spindle.

Medical dictionary. 2011.

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  • extrafusal — ex·tra·fu·sal fyü zəl adj situated outside a striated muscle spindle <extrafusal muscle fibers> compare INTRAFUSAL * * * ex·tra·fu·sal (eks″trə fuґzəl) [extra + fusus] pertaining to striated muscle fibers outside the muscle… …   Medical dictionary

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