One of the mysteries of the English language finally explained.
An enlarged part of a nerve fibre or cell, especially an axon, where it forms a synapse with another nerve.
- ‘There is an estimated total of 30000-50000 boutons of different types across the entire surface.’
- ‘Most synaptic boutons in the mammalian central nervous system are too small to be investigated directly with electrophysiological tools on the single synapse level.’
- ‘To determine the latter, methods that stain the terminal boutons are used.’
- ‘When postsynaptic receptors are saturated, a quantum of synaptic current corresponds to the response evoked in a single synaptic bouton.’
- ‘In this case, spillover is limited to the postsynaptic sites under a single synaptic bouton, and occupancy is likely to vary across sites.’
1930s: from French, literally ‘button’.
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