According to the classic gate-control theory,activation of smaller spinal cord nerve fibers ________ pain and activation of larger spinal cord nerve fibers ________ pain.
A) decreases;decreases
B) increases;increases
C) decreases;increases
D) increases;decreases

Question

Quizplus · Accepted Answer

According to the gate-control theory, activation of smaller spinal cord nerve fibers increases pain, while activation of larger spinal cord nerve fibers decreases pain. This is because larger fibers are able to inhibit the signals from the smaller fibers through a "gate" mechanism in the spinal cord, effectively reducing the amount of pain that is transmitted to the brain.

According to the Classic Gate-Control Theory,activation of Smaller Spinal Cord