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68C Cranial Nerves

12 Cranial Nerves

QuestionAnswer
Cranial Nerve I OLFACTORY from nose to brain - sense of smell
Cranial Nerve II OPTIC from eye to brain - vision
Cranial Nerve III OCULOMOTOR from brain to eye muscles - eye movements, extraoccular muscles, pupillary control( pupillary constriction)
Cranial Nerve IV TROCHLEAR from brain to external eye muscles - down and inward movement of eye
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
Cranial Nerve VI ABDUCENS from brain to external eye muscles - lateral movement of eye
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
Cranial Nerve VIII ACOUSTIC (VESTIBULOCOCHLEAR) from ear to brain - hearing; sense of balance (equilibrium)
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
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
Cranial Nerve XI SPINAL ACCESSORY from brain to certain shoulder and neck muscles - shoulder movements(trapezius muscles) and turning movements of head (sternocleidomastoid muscles)
Cranial Nerve XII HYPOGLOSSAL from brain to muscles of tongue - tongue movements
CN I Olfactory
CN II Optic
CN III Oculomotor
CN IV Trochlear
CN V Trigeminal
CN VI Abducens
CN VII Facial
CN VIII Acoustic (vestibulocochlear)
CN IX Glossopharyngeal
CN X Vagus
CN XI Spinal Accessory
CN XII Hypoglossal
Olfactory CN I
Optic CN II
Oculomotor CN III
Trochlear CN IV
Trigeminal CN V
Abducens CN VI
Facial CN VII
Acoustic (vestibulocochlear) CN VIII
Glossopharyngeal CN IX
Vagus CN X
Spinal Accessory CN XI
Hypoglossal CN XII
Sense of smell Olfactory
Vision Optic
Eye movements, extraoccular muscles, pupillary control( pupillary constriction) Oculomotor
Down and inward movement of eye Trochlear
Lateral movement of eye Abducens
Sense of taste on anterior two thirds of tongue; contraction of muscles of facial expression Facial
Hearing; sense of balance (equilibrium) Acoustic (vestibulocochlear)
Sensation of throat, taste, swallowing movements, gag reflex, taste posterior one third of tongue, secretion of saliva Glossopharyngeal
Sensations of throat, larynx and thoracic and abdominal organs, swallowing, voice production, slowing of heartbeat, acceleration of peristalsis Vagus
Shoulder movements and turning movements of head Spinal Accessory
Tongue movements Hypoglossal
Sensations of face, scalp and teeth; chewing movements Trigeminal
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.
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.
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.
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.
Created by: Cabiden33