Derek dropped a hammer on his foot and shrieked a split second later at the intense pain from a newly broken toe.How did the almost instantaneous pain signals travel
A) along thick, myelinated A-delta fibres
B) through periacqueductal gray neurons in the midbrain
C) along thin, unmyelinated C fibres
D) through gated endorphin pathways in the hypothalamus
Correct Answer:
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