intrafusal muscle fiber

(redirected from Intrafusal muscle fibers)

intrafusal muscle fiber

[-fyo̅o̅′zəl]
the striated muscle fiber within a muscle spindle.

intrafusal muscle fiber

The structural component of the muscle spindle, made up of small skeletal muscle fibers at either end and a central noncontracile region where the sensory receptors are located.
See also: fiber
References in periodicals archive ?
Its are composed of 3-12 intrafusal muscle fibers, of which there are three types:
If botulinum toxin is administered over a prolonged period of time, however, true muscle atrophy can occur, both in the extrafusal and intrafusal muscle fibers within the muscle spindle organ.