Cutting fibers in the neural pathway leading away from the periacqueductal gray in the midbrain
A) reduces the perception of pain.
B) enhances the effects of morphine and other opiate drugs.
C) increases the perception of pain.
D) causes the release of endorphins.

Question

Quizplus · Accepted Answer

Cutting fibers in the neural pathway leading away from the periaqueductal gray (PAG) disrupts the descending pain modulation pathway, which typically inhibits pain signals. This disruption can lead to an increased perception of pain.

Cutting Fibers in the Neural Pathway Leading Away from the Periacqueductal