Structure of Synapses (AQA A-Level Biology): Flashcards

Communication junction between neurones or between neurone and effector

20-30 nanometres

Store neurotransmitters ready for release

Postsynaptic neurone membrane

One-way: presynaptic to postsynaptic only

Multiple presynaptic neurones fire simultaneously at same postsynaptic neurone

Single presynaptic neurone fires repeatedly in quick succession

Reduce likelihood of postsynaptic action potentials

Approx. $-80$ mV (vs usual $-65$ mV resting potential)

Neurotransmitters