synaptic vesicle

(redirected from Presynaptic vesicle)
Also found in: Dictionary, Encyclopedia.
Related to Presynaptic vesicle: synaptic cleft, synaptic gap

synaptic vesicle

n.
Any of several small, intracellular, membrane-bound vesicles at a synaptic junction of neurons that contain a neurotransmitter.

synaptic vesicle

A membranous sac located within the presynaptic membrane of an axon terminal and containing a neurotransmitter.
See also: vesicle

synaptic

pertaining to a synapse.

synaptic cleft
a narrow space between the plasma membranes of the presynaptic and postsynaptic cells.
synaptic junction
see synapse.
synaptic vesicle
one located in the axon terminal of a presynaptic cell, containing neurotransmitter substances.
References in periodicals archive ?
The neurotransmitter molecules released from the presynaptic vesicles traverse the synaptic gap and bind to proteins, termed neurotransmitter receptors, on the surface membrane of the postsynaptic neuron.
The presynaptic vesicles were aligned at the presynaptic membrane opposite a series of cross filaments in the synaptic cleft and a postsynaptic density (Fig.