Cranial nerves with autonomic fibers carry exclusively parasympathetic fibers.

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Multiple Choice

Cranial nerves with autonomic fibers carry exclusively parasympathetic fibers.

Explanation:
Autonomic fibers in cranial nerves are parasympathetic in nature; sympathetic fibers do not travel within cranial nerves. The parasympathetic fibers ride with cranial nerves III, VII, IX, and X to reach their target ganglia (ciliary, pterygopalatine, submandibular, otic) and then the organs they innervate. Sympathetic supply to the head comes via the carotid plexus and periarterial routes, not through the cranial nerves themselves. So cranial nerves that carry autonomic fibers carry exclusively parasympathetic fibers.

Autonomic fibers in cranial nerves are parasympathetic in nature; sympathetic fibers do not travel within cranial nerves. The parasympathetic fibers ride with cranial nerves III, VII, IX, and X to reach their target ganglia (ciliary, pterygopalatine, submandibular, otic) and then the organs they innervate. Sympathetic supply to the head comes via the carotid plexus and periarterial routes, not through the cranial nerves themselves. So cranial nerves that carry autonomic fibers carry exclusively parasympathetic fibers.

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