intrafusal fibers


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Related to intrafusal fibers: Extrafusal fibers, Intrafusal muscle fibers

in·tra·fu·sal fi·bers

muscle fibers present within a neuromuscular spindle.

in·tra·fu·sal fi·bers

(in'tră-fyū'zăl fī'bĕrz)
Muscle fibers present within a neuromuscular spindle.
References in periodicals archive ?
The muscle spindles in the EDL muscle were observed in the two studied groups and were found to have a normal organizational pattern, that is, smaller and thinner intrafusal fibers, surrounded by a connective tissue capsule (Figs.
The motoneuron plays a role in changing the length of the intrafusal fibers and adjusting sensitivity of the muscle spindles.
The second type of muscle fiber, intrafusal fibers, functions within muscle spindles and is innervated by gamma motor neurons and sensory Ia neurons (see Figure 1 ).