Cranial nerves are defined as nerves that originate from the brain rather than the spinal cord.

• A. True
• B. False
• C. Some originate from the brain, some from the spinal cord
• D. Cranial nerves originate from the brainstem only

Answer: (A)

Cranial nerves originate from the brain rather than the spinal cord, so they arise from brain structures (primarily the brainstem, with some beginning in the forebrain) and exit the skull to supply the head and neck. Spinal nerves, in contrast, come off the spinal cord. That’s why the statement is true: cranial nerves are defined by their brain origin, not the spinal cord. The idea that some cranial nerves come from the spinal cord or that they originate only from the brainstem is inaccurate because forebrain origins still count as cranial nerves, and there are no cranial nerves arising from the spinal cord.