Imagine that you are investigating two structures in the brain, labeled structure A and structure B. You find that some neurons originate in structure B and terminate in structure A, and vice versa. You also find that some neurons originate and terminate in the same structure. Relative to structure B, which neurons are afferent, efferent, and interneurons?
What will be an ideal response?
Ans: Those that project from structure B are efferent neurons, and those that project to structure B are afferent neurons. Neurons that remain within the same structure are interneurons.
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