Neurotransmitters are released by
A) terminal boutons.
B) the cell body.
C) dendrites.
D) myelin sheaths.

Question

Quizplus · Accepted Answer

Neurotransmitters are released by the terminal boutons (or axon terminals) of neurons. These are the small structures at the end of the neuron's axon that make contact with other neurons or target cells, such as muscle fibers or glands. When an action potential reaches the axon terminal, it triggers the release of neurotransmitters into the synaptic cleft, which is the small gap between the neurons or between a neuron and its target cell. From there, the neurotransmitters diffuse across the cleft and bind to receptor molecules on the other side, which can either excite or inhibit the receiving neuron or cell.

Neurotransmitters Are Released by