intrafusal muscle fiber


Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.

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