Summary: Cranial Nerves
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1 Cranial Nerves
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What does the olfactory nerve do?
It supplies olfactory epithelium. Retrieves smell from nasal mucosa of each nasal cavity, nasal septum and superior conchae. -
What dies the optic nerve do?
Supplies nerve cell bodies in the retina --> vision -
Where does the optic nerve exit?
the orbital canal -
What disease can affect the optic nerve?
Multiple sclerosis (demyelinating disease) -
What are the two motor functions of the oculomotor nerve?
Somatic and Visceral -
What does the somatic motor of the oculomotor nerve supply?
Superior rectus, medial rectus, inferior oblique, leavtor palpera superioris -
What does the visceral motor of the oculomotor nerve supply?
Parasympathetic sphincter papillae and ciliary muscle via the ciliary ganglion -
what does the somatic motor of the trochlear nerve supply?
motor to superior oblique muscle of eye -
what are the 3 branches of the trigeminal nerve?
ophthalmic
maxillary
mandibular -
what is the function of the ophthalmic branch of the trigeminal nerve?
general sensory - sensation from cornea, skin of forehead, scalp, eyelids, nose, mucosa of nasal cavities and paranasal sinuses
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