If the dorsal root of a spinal nerve is severed,
A)output to skeletal muscles would be blocked.
B)output to visceral organs would be blocked.
C)the spinal cord would not be able to process information at that level.
D)the brain would not be able to communicate with that level of the spinal cord.
E)sensory input would be blocked.

Question

Quizplus · Accepted Answer

The dorsal root of a spinal nerve contains sensory fibers that transmit information from the periphery towards the spinal cord. If the dorsal root is severed, sensory input from the affected area would be blocked. Output to skeletal and visceral muscles, as well as the ability of the spinal cord to process information and the communication between the brain and the affected level of the spinal cord, would not be directly affected by a dorsal root injury.

If the Dorsal Root of a Spinal Nerve Is Severed