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)glial cell.
B)neurotransmitter.
C)precursor cell.
D)action potential.

Question

Quizplus · Accepted Answer

A neurotransmitter is a chemical released by a neuron at the synapse that alters the activity of a receiving neuron. Glial cells are not involved in transmitting chemical signals between neurons. Precursor cells are immature cells that can develop into other cell types, including neurons, but they do not directly alter the activity of receiving neurons. Action potentials are the electrical signals used by neurons to communicate with each other but are not chemical substances released at the synapse.

A Chemical Substance That Is Released by a Transmitting Neuron