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Presynaptic Terminals

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Definition: The distal terminations of axons which are specialized for the release of neurotransmitters. Also included are varicosities along the course of axons which have similar specializations and also release transmitters. Presynaptic terminals in both the central and peripheral nervous systems are included.  distal terminations of axons: note X ref; A 11 qualif except /cytol   
Examples Mossy Fibers, Hippocampal 		Other names Synaptic Terminals; Synaptic Boutons; Nerve Endings, Presynaptic; Axon Terminals; Terminals, Synaptic; Terminals, Presynaptic; Terminals, Axon; Terminal, Synaptic; Terminal, Presynaptic; Terminal, Axon; Synaptic Terminal; Synaptic Bouton; Presynaptic Terminal; Presynaptic Nerve Endings; Presynaptic Nerve Ending; Nerve Ending, Presynaptic; Endings, Presynaptic Nerve; Ending, Presynaptic Nerve; Boutons, Synaptic; Bouton, Synaptic

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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