A series of steps occurs between the arrival of an action potential at a presynaptic axon terminal and the initiation of an action potential in the postsynaptic neuron.What is the last step in this process? A) Opening of Ca²⁺ channels in the presynaptic membrane B) Fusing of synaptic vesicles with the presynaptic membrane C) Spreading of depolarization to neighboring regions of the postsynaptic membrane D) Influx of Na⁺,causing a graded depolarization of the postsynaptic membrane E) Binding of acetylcholine to gated receptor proteins,allowing diffusion of Na⁺ and K⁺

Question

Quizplus · Accepted Answer

The last step in the process between the arrival of an action potential at a presynaptic axon terminal and the initiation of an action potential in the postsynaptic neuron is the spreading of depolarization to neighboring regions of the postsynaptic membrane. This depolarization can then trigger an action potential in the postsynaptic neuron.

A Series of Steps Occurs Between the Arrival of an Action