Definition of presynaptic in English:

presynaptic

Line breaks: pre|synap¦tic
Pronunciation: /ˌpriːsɪˈnaptɪk
 
/

adjective

Physiology
Relating to or denoting a nerve cell that releases a transmitter substance into a synapse during transmission of an impulse: the presynaptic terminal
More example sentences
  • Instead, transmission is accomplished by the release of a chemical neurotransmitter substance from the presynaptic fibre.
  • The toxin irreversibly binds to presynaptic cholinergic receptors at motor nerve terminals and is subsequently internalized.
  • The authors proposed a mechanism of action whereby the calcium channel blocker inhibited the presynaptic release of neurotransmitters.

Derivatives

presynaptically

adverb
More example sentences
  • Cocaine blocks the reuptake of catecholamines presynaptically.
  • Glutamate is released presynaptically and binds to a postsynaptic receptor gating a cation-selective channel, thus depolarizing the post-synaptic cell.
  • We find that the occurrence of glia postsynaptically is strikingly higher than presynaptically, in both types of synapses.

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