Question

The difference between cranial and spinal nerves is

• A. Spinal nerves comprise sensory and motor fibres and cranial nerve has only one kind.
• B. Spinal sensory nerves form dorsal root ganglia at their origin from spinal cord and cranial nerves originate from brain.
• C. Both of the above.
• D. None of the above.

Answer 1

Answer: (B)

Spinal sensory nerves form dorsal root ganglia at their origin from spinal cord and cranial nerves originate from brain.

Sensory neurons have their cell bodies in the spinal (dorsal root) ganglion. Their axons travel through the dorsal root into the gray matter of the cord. Cranial nerves are nerves, that emerge directly from the brain and the brainstem.