Presynaptic neurone

From The School of Biomedical Sciences Wiki
Revision as of 18:32, 17 November 2017 by 170085946 (talk | contribs) (Added reference)
Jump to navigation Jump to search

 The presynaptic neurone is the neurone that releases neurotransmitter, across the synapse, to the post synaptic neurone.


When an action potential arrives at the axon terminal of the presynaptic membrane, Ca2+ ion channels open, allowing the ions to move into the cell down their concentration gradient. This in turn causes the neurotransmitter containing vesicles to translocate and fuse to the presynaptic membrane. The neurotransmitter diffuses across the synapse and starts a new action potential in the post synaptic neurone.



Reference

Purves D, Augustine GJ, Fitzpatrick D, et al., editors. Neuroscience. 2nd edition. Sunderland (MA): Sinauer Associates; 2001. Excitatory and Inhibitory Postsynaptic Potentials. Available from: https://www.ncbi.nlm.nih.gov/books/NBK11117/
accessed 17/11/17

Retrieved from "https://teaching.ncl.ac.uk/bms/wiki//index.php?title=Presynaptic_neurone&oldid=18526"