MeSH Browser

MeSH Heading: Motor Neurons, Gamma
Tree Number(s): A08.675.655.500.525; A11.671.655.500.525
Unique ID: D009047
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D009047
Scope Note: 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.
Entry Term(s): Gamma Motorneurons; Motor Neurons, Gamma-Efferent; Neurons, Fusimotor; Neurons, Gamma Motor
NLM Classification #: WL 102.7
See Also: Muscle Spindles
Public MeSH Note: 91; was see under MOTOR NEURONS 1979-90; was MOTOR NEURONS, GAMMA EFFERENT see under MOTOR NEURONS 1975-78
Online Note: use MOTOR NEURONS, GAMMA to search MOTOR NEURONS, GAMMA EFFERENT 1975-78
History Note: 91(79); was see under MOTOR NEURONS 1979-90; was MOTOR NEURONS, GAMMA EFFERENT see under MOTOR NEURONS 1975-78
Date Established: 1991/01/01
Date of Entry: 1974/11/11
Revision Date: 2014/06/13

Allowable Qualifiers: chemistry (CH)

classification (CL)

cytology (CY)

drug effects (DE)

enzymology (EN)

immunology (IM)

metabolism (ME)

microbiology (MI)

parasitology (PS)

pathology (PA)

physiology (PH)

radiation effects (RE)

transplantation (TR)

ultrastructure (UL)

virology (VI)

Concept UI: M0014115
Scope Note: 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.
Terms: Motor Neurons, Gamma Preferred Term
Term UI T027027
Date01/01/1999
LexicalTag NON
ThesaurusID NLM (1975); Motor Neurons, Gamma-Efferent
Term UI T027028
Date06/06/1978
LexicalTag NON
ThesaurusID UNK (19XX); Neurons, Fusimotor
Term UI T027029
Date05/22/1978
LexicalTag NON
ThesaurusID UNK (19XX); Neurons, Gamma Motor
Term UI T027026
Date05/22/1978
LexicalTag NON
ThesaurusID UNK (19XX); Gamma Motorneurons
Term UI T859592
Date05/12/2014
LexicalTag NON
ThesaurusID NLM (2015)

Motor Neurons, Gamma MeSH Descriptor Data 2025