Which of the following is involved in the sequence of events that triggers synaptic transmission? A) The action potential B) The opening of Ca²⁺ channels at the synaptic terminal C) The entry of Ca²⁺ into the presynaptic terminal D) Fusion of synaptic vesicles with the presynaptic membrane E) All of the above

Question

Quizplus · Accepted Answer

All of the above are involved in the sequence of events that triggers synaptic transmission. The action potential travels down the axon to the presynaptic terminal, causing the Ca²⁺ channels to open and allowing Ca²⁺ to enter the presynaptic terminal. This influx of Ca²⁺ triggers the fusion of synaptic vesicles with the presynaptic membrane and the release of neurotransmitters into the synaptic cleft, leading to synaptic transmission.

Which of the Following Is Involved in the Sequence of Events