A chemical substance that is released by a transmitting neuron at the synapse and that alters the activity of a receiving neuron is called a/an:
A) neurotransmitter.
B) action potential.
C) glial cell.
D) precursor cell.

Question

Quizplus · Accepted Answer

A neurotransmitter is a chemical substance that is released by a transmitting neuron at the synapse and that alters the activity of a receiving neuron. Option B, action potential, refers to the electrical impulse that travels down the axon of a neuron. Option C, glial cell, is a type of cell in the nervous system that provides support for neurons but does not release neurotransmitters. Option D, precursor cell, refers to a cell that gives rise to other, more specialized cell types, and is not directly related to neurotransmission.

A Chemical Substance That Is Released by a Transmitting Neuron