10 Cranial Nerves
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Olfactory
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Optic
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- more an outgrowth of brain
- ipsilateral lesion symptoms
Oculomotor
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Trochlear
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- read or go down stairs
- tilt head to opposite side to compensate. Other eye works normal
Trigeminal
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Abducens
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Facial
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- UMN from both sides to forehead but only one side to lower face
- pt with UMN lesion affecting facial nerve maintain forehead movement
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- LMN lesion completely losses both sides
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- unable to tolerate sounds because so loud
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- facial droop in half of face
Vestibularcochlear
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- rarely done
- Doll's eyes: eyes move with head turn
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- warm water side push eye ball away
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Glossopharyngeal
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Vagus
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Speech Test
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- aortic dissection: enlarged aorta
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Accessory
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Hypoglossal
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- CN 12 pushes tongue to midline
Reflexes
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Tongue
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