Neurobioloogias sönade seletus, ingl keelne
(a dendrite, dendritic spine or a soma); it is the point at which neuronal
communication occurs. Nerve impulses travelling down the axon reach the synapse
and release neurotransmitters into the gap between neurones (so called synaptic cleft).
See also pre- and postsynaptic*.
SYNAPTIC CLEFT – A gap separating the membrane of the presynaptic neurone and
that of the postsynaptic neurone. It’s very fine (in the order of nanometres) and filled
with the CSF*.
SYNAPTIC VESICLE – A tiny sac made of a membrane and containing
neurotransmitter molecules. It is present in the anon terminals and responds to the
arrival of an action potential* when synaptic vesicles fuse with the presynaptic
membrane and their content is released to the synaptic cleft*.
SYNAPTOGENESIS – Formation of new synapses, occurring both in developing and
adult brain; implicated in neuroplasticity.
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