According to the 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 because these fibers transmit pain signals. Activation of larger spinal cord nerve fibers decreases pain because these fibers can inhibit the transmission of pain signals, effectively "closing the gate" to pain.

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