If the right lateral spinothalamic tract is severed,
A)muscles on the left side are paralyzed.
B)muscles on the right side are paralyzed.
C)pain impulses from the left side are blocked.
D)pain impulses from the right side are blocked.

Question

Quizplus · Accepted Answer

The spinothalamic tract carries pain and temperature sensations. When the right lateral spinothalamic tract is severed, it blocks the transmission of these sensations from the opposite (left) side of the body, as these fibers cross over to the opposite side at the level of the spinal cord before ascending to the brain.

If the Right Lateral Spinothalamic Tract Is Severed