12 Cranial Nerves
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| Cranial Nerve I OLFACTORY | from nose to brain - sense of smell
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| Cranial Nerve II OPTIC | from eye to brain - vision
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| Cranial Nerve III OCULOMOTOR | from brain to eye muscles - eye movements, extraoccular muscles, pupillary control( pupillary constriction)
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| Cranial Nerve IV TROCHLEAR | from brain to external eye muscles - down and inward movement of eye
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| Cranial Nerve V TRIGEMINAL Ophthalmic branch Maxiallry branch Mandibular branch | from skin and mucous membranes of head to brain; from teeth to brain; from brain to chewing muscles - sensations of face, scalp and teeth; chewing movements
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| Cranial Nerve VI ABDUCENS | from brain to external eye muscles - lateral movement of eye
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| Cranial Nerve VII FACIAL | from taste buds of tongue to brain; from brain to facial muscles - sense of taste on anterior two thirds of tongue; contraction of muscles of facial expression
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| Cranial Nerve VIII ACOUSTIC (VESTIBULOCOCHLEAR) | from ear to brain - hearing; sense of balance (equilibrium)
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| Cranial Nerve IX GLOSSOPHARYNGEAL | from throat and taste buds of tongue to brain; from brain to throat muscles and salivary glands - sensation of throat, taste, swallowing movements, gag reflex, taste posterior one third of tongue, secretion of saliva
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| Cranial Nerve X VAGUS | from throat, larynx and organs in the thoracic and abdominal cavities to brain - sensations of throat, larynx and thoracic and abdominal organs, swallowing, voice production, slowing of heartbeat, acceleration of peristalsis
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| Cranial Nerve XI SPINAL ACCESSORY | from brain to certain shoulder and neck muscles - shoulder movements(trapezius muscles) and turning movements of head (sternocleidomastoid muscles)
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| Cranial Nerve XII HYPOGLOSSAL | from brain to muscles of tongue - tongue movements
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| CN I | Olfactory
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| CN II | Optic
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| CN III | Oculomotor
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| CN IV | Trochlear
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| CN V | Trigeminal
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| CN VI | Abducens
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| CN VII | Facial
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| CN VIII | Acoustic (vestibulocochlear)
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| CN IX | Glossopharyngeal
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| CN X | Vagus
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| CN XI | Spinal Accessory
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| CN XII | Hypoglossal
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| Olfactory | CN I
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| Optic | CN II
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| Oculomotor | CN III
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| Trochlear | CN IV
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| Trigeminal | CN V
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| Abducens | CN VI
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| Facial | CN VII
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| Acoustic (vestibulocochlear) | CN VIII
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| Glossopharyngeal | CN IX
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| Vagus | CN X
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| Spinal Accessory | CN XI
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| Hypoglossal | CN XII
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| Sense of smell | Olfactory
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| Vision | Optic
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| Eye movements, extraoccular muscles, pupillary control( pupillary constriction) | Oculomotor
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| Down and inward movement of eye | Trochlear
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| Lateral movement of eye | Abducens
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| Sense of taste on anterior two thirds of tongue; contraction of muscles of facial expression | Facial
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| Hearing; sense of balance (equilibrium) | Acoustic (vestibulocochlear)
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| Sensation of throat, taste, swallowing movements, gag reflex, taste posterior one third of tongue, secretion of saliva | Glossopharyngeal
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| Sensations of throat, larynx and thoracic and abdominal organs, swallowing, voice production, slowing of heartbeat, acceleration of peristalsis | Vagus
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| Shoulder movements and turning movements of head | Spinal Accessory
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| Tongue movements | Hypoglossal
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| Sensations of face, scalp and teeth; chewing movements | Trigeminal
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| 1. The cranial nerves are tested in the following ways | I Olfactory- id of common odors
II Optic- testing of visual acuity and visual field
III Oculomotor- testing ability of eyes to move together in all directions, testing pupillary response
1.
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| 2. The cranial nerves are tested in the following ways | IV Trochlear- tested w/oculomotor; testing eye movements down/inward
V Trigeminal- jaw strength and sensation of face, corneal reflex
2.
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| 3. The cranial nerves are tested in the following ways | VI Abducens- tested w/ oculomotor; testing eye movements
VII Facial- ability of face to move in symmetry, ID of tastes
VIII Acoustic (Vestibulocochlear)- testing of hearing through whisper or other means and checking equilibrium and balance
3.
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| 4. The cranial nerves are tested in the following ways | IX Glossopharyngeal- Id of tastes
X Vagus- gag reflex, movement of uvula and soft palate
XI Spinal Accessory- shoulder and neck movement
XII Hypoglossal- Tonue motion
4.
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Created by:
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