Brain And Cranial Nerves Essay

255 WordsApr 11, 20122 Pages
BRAIN AND CRANIAL NERVES 1 Olfactory Nerve: - Smell - aNOSMia (loss of smell) 2. Optic Nerve - Vision - aNOpSia (loss of sight) 3. Oculomotor Nerve - controls a group of eye muscle responsible for movement of the eyeball and eyelid. - Accommodation of lens for near vision (ability to change shape) - Constriction of the pupils - Strabismus (condition in which the eyes aren’t properly aligned with each other aka lazy eye) - Diplopia (double vision) - Ptosis (droopy eyelid) 4. Trochlear Nerve - Controls the superior oblique muscle (involved with movement of the eyelids) - Strabismus, diplopia 5. Trigeminal Nerve - Supplies chewing muscles (muscle of mastication) - Sensation to the face - Loss of muscle function, loss of facial sensation - Trigeminal neuralgia: has a trigger point in or around the mouth, when touched elicits the pain response in some other part of the face. 6. Abducent Nerve - Controls lateral rectus muscle - Strabismus, diplopia 7. Facial - Supplies muscles of facial expression - Supplies taste to anterior 2/3 of tongue - Facial (Bell’s) palsy 8. Vestibulocochlear - Equilibrium - Hearing - Vertigo/tinnitus 9. Glossopharangeal - Taste on posterior 1/3 of tongue - Sensation to throat - Supplies muscles involving with swallowing - Loss of taste, difficulty swallowing, decrease in sensation in throat 10. Vagus IMPORTANT - Sensation to throat - Supples muscles involved with swallowing - Carries parasympathetic info to thorax and abdomen - Decreased sensation to throat, difficulty swallowing, loss of PS functions in thorax and abs. 11. Accessory/ Spinal - Supplies the traps and sternocleidomastoid muscles - loss of muscle function 12. Hypoglossal - supplies muscles responsible for movement of tongue - difficulty chewing, speaking, and

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