synaptic vesicle
noun
: a small secretory vesicle that contains a neurotransmitter, is found inside an axon near the presynaptic membrane, and releases its contents into the synaptic cleft after fusing with the membrane
When a nerve impulse moves down the axon of a neuron and arrives at an axon terminal, it stimulates synaptic vesicles in the terminal to discharge neurotransmitters.—
Rita L. Atkinson et al., Introduction to Psychology, 9th edition
Rita L. Atkinson et al., Introduction to Psychology, 9th editionDictionary Entries Near synaptic vesicle
Cite this Entry
“Synaptic vesicle.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/synaptic%20vesicle. Accessed 28 Nov. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share