Periaqueductal gray contains large numbers of _________ receptors.
A)glutamate
B)Substance P
C)endorphin
D)serotonin

Question

Periaqueductal gray contains large numbers of _________ receptors.​ 
A)glutamate 
B)Substance P 
C)endorphin 
D)serotonin

Quizplus · Accepted Answer

Periaqueductal gray contains large numbers of endorphin receptors, which play a role in pain relief and analgesia. Glutamate, substance P, and serotonin are also involved in pain modulation, but their receptors are not specifically abundant in the periaqueductal gray.

Periaqueductal Gray Contains Large Numbers of _________ Receptors.​

Periaqueductal Gray Contains Large Numbers of _________ Receptors.