The posterior root of a spinal nerve contains
A) axons of motor neurons.
B) axons of sensory neurons.
C) cell bodies of motor neurons.
D) cell bodies of sensory neurons.
E) interneurons.

Question

Quizplus · Accepted Answer

The posterior root of a spinal nerve contains axons of sensory neurons, which transmit sensory information from the periphery towards the spinal cord. The cell bodies of these sensory neurons are located in the dorsal root ganglion, which is located just outside the spinal cord. The anterior root of a spinal nerve contains axons of motor neurons, which transmit motor commands from the spinal cord to the periphery. The cell bodies of these motor neurons are located in the ventral horn of the spinal cord. Interneurons are located within the spinal cord and play a role in processing and relaying information between sensory and motor neurons.

The Posterior Root of a Spinal Nerve Contains