Search on: NEURON, GAMMA-EFFERENT MOTOR 
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Descriptor English:   Motor Neurons, Gamma 
Descriptor Spanish:   Neuronas Motoras gamma 
Descriptor Portuguese:   Neurônios Motores gama 
Synonyms English:   Fusimotor Neuron
Fusimotor Neurons
Gamma Motor Neuron
Gamma Motor Neurons
Gamma Motorneuron
Gamma Motorneurons
Gamma-Efferent Motor Neuron
Gamma-Efferent Motor Neurons
Motor Neuron, Gamma
Motor Neuron, Gamma-Efferent
Motor Neurons, Gamma Efferent
Motor Neurons, Gamma-Efferent
Motorneuron, Gamma
Motorneurons, Gamma
Neuron, Fusimotor
Neuron, Gamma Motor
Neuron, Gamma-Efferent Motor
Neurons, Fusimotor
Neurons, Gamma Motor
Neurons, Gamma-Efferent Motor  
Tree Number:   A08.675.655.500.525
A11.671.655.500.525
Definition English:   Motor neurons which activate the contractile regions of intrafusal SKELETAL MUSCLE FIBERS, thus adjusting the sensitivity of the MUSCLE SPINDLES to stretch. Gamma motor neurons may be "static" or "dynamic" according to which aspect of responsiveness (or which fiber types) they regulate. The alpha and gamma motor neurons are often activated together (alpha gamma coactivation) which allows the spindles to contribute to the control of movement trajectories despite changes in muscle length. 
See Related English:   Muscle Spindles
 
History Note English:   91(79); was see under MOTOR NEURONS 1979-90; was MOTOR NEURONS, GAMMA EFFERENT see under MOTOR NEURONS 1975-78 
Allowable Qualifiers English:  
CH chemistry CL classification
CY cytology DE drug effects
EN enzymology IM immunology
ME metabolism MI microbiology
PS parasitology PA pathology
PH physiology RE radiation effects
TR transplantation UL ultrastructure
VI virology  
Record Number:   9240 
Unique Identifier:   D009047 

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