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Cranial Nerve_JL
12 cranial nerves: structures & functions
| Question | Answer |
|---|---|
| 1st cranial nerve | Olfactory; Sensory; detects smell |
| 2nd cranial nerve | Optic; Sensory; detects vision |
| 3rd cranial nerve | Oculomotor; Motor; external eye muscle + sphicter&dilator; parasympathetic |
| 4th cranial nerve | Trochlear; Motor; external eye muscle; comes out backward initially |
| 5th cranial nerve | Trigeminal; 5-1 sensory near eye; 5-2 sensory mid-face; 5-3 sensory near chin + motor-mastification (chewing) |
| 6th cranial nerve | Abducens; Motor; external eye muscle |
| 7th cranial nerve | Facial; Sensory- anterior tongue taste; Motor- facial expression; parasympathetic |
| 8th cranial nerve | Vestibulocochlear; sensory; balance + auditory |
| 9th cranial nerve | Glossopharyngeal; sensory- posterior tongue taste; motor- salivary gland |
| 10th cranial nerve | Vagus; sensory- foregut, midgut, pharyngeal taste; motor- intestinal smooth muscle; parasympathetic |
| 11th cranial nerve | Accessory; Motor |
| 12th cranial nerve | Hypoglossus; Motor; Tongue muscles |