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Cranial Nerves 1-6 Word Scramble

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BIOL3326 Forms

Cranial Nerve	Type	Innervation	Fxn	Origin	Exits Skull	Test for Lesion
1 - Olfactory	sensory	nasal cavity	smell	telencephalon	cribiform plate (ethmoid bone)/ ACF	lack of smell
2- Optic	sensory	orbit	sight	diencephalon	optic canal/ MCF	lack of sight
3- Occulomotor	motor and parasympathetic	orbit	motor- raises eyelids and adducts eye. parasymp- contricts pupil and accomodates eye	midbrain (edinger-westphal nucleus)	superior orbital fissure/ MCF	cannot adduct eye
4- Trochlear	motor	orbit	depresses and abducts eye, intorts eye	midbrain (trochlear nucleus)	superior orbital fissure/ MCF	cannot intort eye
V1- Ophthalmic (trigeminal)	sensory	orbit, scalp	sensory of forehead, scalp, cornea	pons	superior orbital fissure/ MCF	lack of sensory to forehead
V2- Maxillary (trigeminal)	sensory	pterygopalatine fossa	sensations of maxillary face, maxillary teeth, nasal cavity and palate	pons	foramen rotundum/ MCF	lack of sensation to maxilla/ nasal cavity
V3- Mandible (trigeminal)	sensory/ motor	infratemporal fossa	sensory- mandible, mandibular teeth, general sensation of anterior 2/3 tongue. motor- muscles of mastication, tensor muscles of neck/face	pons	foramen ovale/ MCF	inability to chew food/ feel touch on tongue
6- Abducent	motor	orbit	abduct the eye	pons	superior orbital fissure/ MCF	cannot horizontally gaze