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单词 monosynaptic
释义

monosynapticadj.

Brit. /ˌmɒnə(ʊ)sᵻˈnaptɪk/, /ˌmɒnə(ʊ)sʌɪˈnaptɪk/, U.S. /ˌmɑnəsəˈnæptɪk/, /ˌmɑnəˌsaɪˈnæptɪk/
Origin: Formed within English, by compounding. Etymons: mono- comb. form, synaptic adj.
Etymology: < mono- comb. form + synaptic adj. Compare polysynaptic adj.
Physiology.
Involving a single synapse; esp. designating or relating to a reflex arc in which there is a direct connection between the afferent sensory neuron and the efferent motor neuron, without the involvement of an interneuron.
ΚΠ
1942 D. Bodian in Physiol. Rev. 22 155 The above assumption does not logically exclude the possibility of the existence of monosynaptic systems, that is, neurons receiving only one synaptic terminal.
1967 Brain 90 887 This spinal reflex is considered as monosynaptic because its central latency in the spinal cord is estimated to be 1.5 m.sec...or less.., a latency too short to be polysynaptic.
1992 S. Rose Making of Memory 219 The direct connections involve synapses between an axon of a sensory neuron and a dendrite or cell body of the motor neuron (this is known as a monosynaptic pathway).
2001 Neuroscience 107 117 Some of these projections include monosynaptic connections to laryngeal motoneurons.

Derivatives

ˌmonosyˈnaptically adv.
ΚΠ
1951 Proc. Royal Soc. B. 138 475 After a brief quiescent interval, a small irregular discharge may be set up monosynaptically by subsequent volleys.
1966 Nature 10 Sept. 1183/1 This would increase the second excitatory potential, adding to the peak of that produced monosynaptically by the direct volley.
1990 European Jrnl. Neurosci. 2 647/1 Glutamate..appears to be the transmitter responsible for the fast EPSP [= excitory postsynaptic potential] evoked monosynaptically by some A and C fibres on dorsal horn neurons.
This is a new entry (OED Third Edition, December 2002; most recently modified version published online March 2022).
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adj.1942
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