Final answer:
The cranial nerves that carry preganglionic parasympathetic fibers are the oculomotor, facial, glossopharyngeal, and vagus nerves.
Step-by-step explanation:
The cranial nerves that carry preganglionic parasympathetic fibers are the oculomotor, facial, glossopharyngeal, and vagus nerves.
The oculomotor, facial, and glossopharyngeal nerves contain fibers that contact autonomic ganglia, which initiate pupillary constriction and salivation. The vagus nerve primarily targets autonomic ganglia in the thoracic and upper abdominal cavities, influencing the heart, bronchi, esophagus, stomach, liver, pancreas, gall bladder, and small intestine.