Lesions on one side of the spinal cord cut the lateral spinothalamic tract and eliminate
A) sensations of touch from both sides below the level of injury.
B) proprioception on the same side of the body below the level of the injury.
C) cutaneous sensations on the opposite side of the body below the level of injury.
D) sensations of vibration on the opposite side of the body at the level of the injury.
E) sensations of tickle on the same side of the body below the level of injury.

Question

Quizplus · Accepted Answer

Lesions on one side of the spinal cord only affect the tracts on that side. Therefore, the lateral spinothalamic tract, which carries cutaneous (skin) sensations from the opposite side of the body, would be cut. This would eliminate cutaneous sensations on the opposite side of the body below the level of the injury. Sensations of touch, proprioception, vibration, and tickle are carried by different tracts and would not be affected by a lesion in the lateral spinothalamic tract.

Lesions on One Side of the Spinal Cord Cut the Lateral