Question

practice it small knob at the end of the axon that releases neurotransmitters neurotransmitter dendrite cell body terminal button axon

Explanation:

A terminal button is a small knob at the end of the axon that releases neurotransmitters. Neurotransmitters are chemical messengers, dendrites receive signals, the cell - body contains the nucleus and other organelles, and an axon is a long fiber that transmits electrical impulses.

Answer:

D. terminal button