All of the following cranial nerves contain parasympathetic fibers as they leave the brain except the

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The trigeminal nerve (cranial nerve V) does not contain parasympathetic fibers; it primarily carries sensory information from the face and motor fibers to the muscles of mastication. The facial, oculomotor, glossopharyngeal, and vagus nerves all contain parasympathetic fibers involved in various functions such as gland secretion, pupil constriction, and heart rate regulation.

All of the Following Cranial Nerves Contain Parasympathetic Fibers as They