W hich of the following is characteristic of small synaptic vesicles? A) They contain neurotransmitters made only in the soma. B) Their contents show as a dense core in electron micrographs. C) They are about 100-300 nm in diameter. D) They fuse with the presynaptic membrane less than 1 ms after an action potential. E) They are generally more than 50 nm away from a Ca²⁺ channel.

Question

Quizplus · Accepted Answer

Small synaptic vesicles fuse with the presynaptic membrane rapidly, typically less than 1 ms after an action potential, to release neurotransmitters.

W Hich of the Following Is Characteristic of Small Synaptic