synaptic vesicles


syn·ap·tic ves·i·cles

the small (average diameter, 30 nm), intracellular, membrane-bound vesicles near the presynaptic membrane of a synaptic junction, containing the transmitter substance that, in chemical synapses, mediates the passage of nerve impulses across the junction.
See also: synapse.

syn·ap·tic ves·i·cles

(si-nap'tik ves'i-kĕlz) The small (average diameter, 30 nm), intracellular, membrane-bound vesicles near the presynaptic membrane of a synaptic junction, containing the transmitter substance that, in chemical synapses, mediates the passage of nerve impulses across the junction.
See also: synapse