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synaptic vesicles

 

Definition: 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

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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