- fusimotor fibers
- efferent A fibers that innervate the intrafusal fibers of the muscle spindle; see also gamma f's. Called also fusimotor axons.
Medical dictionary. 2011.
fusimotor fibers
Look at other dictionaries:
fusimotor — Pertaining to the efferent innervation of intrafusal muscle fibers by gamma motor neurons. SEE ALSO: neuromuscular spindle. [L. fusus, spindle, + moveo, to move] * * * fu·si·mo·tor (fu″sĭ moґtər) [fus + motor] innervating… … Medical dictionary
fusimotor nerves — nerves with a special type of ending that innervates intrafusal fibers of the muscle spindle … Medical dictionary
gamma fibers — any A fibers that conduct at velocities of 15 to 40 meters per second and range from 3 to 7 μm in diameter; the only such fibers are the fusimotor fibers. See also under loop and motoneuron … Medical dictionary
gamma motoneurons — neurons of the anterior spinal cord that give rise to the gamma (fusimotor) fibers which innervate intrafusal fibers of the muscle spindle. Cf. anterior horn cell and gamma loop … Medical dictionary
Muscle spindle — Latin fusus neuromuscularis Code TH H3.11.06.0.00018 Muscle spindles are sensory receptors within the belly of a muscle, which primarily detect changes in the length of this muscle. They convey length information to the central nervous system via … Wikipedia
Gamma motoneuron — Neuron: Gamma motorneuron A muscle spindle, with γ motor and Ia sensory fibers NeuroLex ID … Wikipedia
End-plate potential — Miniature end plate potentials and end plate spikes recorded from muscle fiber End plate potentials (EPPs) (sometimes called end plate spikes ) are the depolarizations of skeletal muscle fibers caused by neurotransmitters binding to the… … Wikipedia
Hypotonia — Floppy Muscle Syndrome Classification and external resources ICD 10 P94.2 ICD 9 358 … Wikipedia
