To excite or inhibit an action potential in a receiving neuron,a neurotransmitter must cross the
A) axon.
B) synaptic gap.
C) myelin sheath.
D) endocrine glands.

Question

Quizplus · Accepted Answer

A neurotransmitter must cross the synaptic gap between the axon of the sending neuron and the dendrite of the receiving neuron in order to excite or inhibit an action potential. The other options (axon, myelin sheath, endocrine glands) are not involved in the process of neurotransmission.

To Excite or Inhibit an Action Potential in a Receiving