Identify the proper path of the main pain pathway, beginning with the site of injury and ending at the point where the person becomes aware of pain.
A) Injured tissues stimulate nociceptors; the pain signal then travels to the dorsal horn of the spinal cord, the spinothalamic tract relays pain signal to thalamus; the thalamus relays the pain signal to the postcentral gyrus
B) Injured tissues stimulate nociceptors; the pain signal travels to the dorsal horn of the spinal cord; the spinoreticular tract relays the pain signal to the thalamus; the thalamus relays the pain signal to the postcentral gyrus
C) Injured tissues stimulate nociceptors; the pain signal travels to the spinoreticular tract; the spinoreticular tract relays the pain signal to the hypothalamus and limbic system
D) Injured tissues stimulate the dorsal horn of the spinal cord; the spinothalamic tract stimulates the spinoreticular tract; the spinoreticular tract stimulates the thalamus; the thalamus relays a signal to the limbic system

Question

Quizplus · Accepted Answer

The proper path of the main pain pathway begins with injured tissues stimulating nociceptors, with the pain signal traveling to the dorsal horn of the spinal cord, and then the spinothalamic tract relays the pain signal to the thalamus. The thalamus relays the pain signal to the postcentral gyrus, where the person becomes aware of pain. This is the correct and most commonly accepted path of the main pain pathway. Choices B, C, and D are not correct because they include incorrect steps or pathways.

Identify the Proper Path of the Main Pain Pathway, Beginning