For an EPSP to cause another action potential,the stimulation must reach the _____,which is (are)rich in voltage-sensitive ion channels.
A) initial segment (axon hillock)
B) cell body
C) dendrites
D) terminal buttons

Question

Quizplus · Accepted Answer

The initial segment, also known as the axon hillock, is the region of the neuron where the action potential is generated. It is rich in voltage-sensitive ion channels that allow for the propagation of the electrical signal down the axon. The dendrites and cell body do not typically have enough voltage-sensitive ion channels to generate an action potential. The terminal buttons are responsible for releasing neurotransmitters and do not generate action potentials. Therefore, the stimulation must reach the initial segment for an EPSP to cause another action potential.

For an EPSP to Cause Another Action Potential,the Stimulation Must