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Cranial Nerves
Question | Answer |
---|---|
Connects: Nose to brain Fx: Smelling | I. Olfactory |
Connects: Eye to Brain Fx: Vision (transmits visual images to brain) | II. Optic |
Connects:Brain to eye muscles Fx: raise eyelids, pupil constriction,eye movements | III. Oculomotor |
Connects: Brain to external eye muscles Fx: Downward/inward movement of eye | IV. Trochlear |
Connects: skin/mucus membrane of head to brain; teeth to brain; brain to facial muscles Fx: Sensations of face, scalp and teeth; chewing movements | V. Trigeminal; Opthamalic Branch; Maxillary branch; Mandibular branch |
Connection: Brain to external eye muscles Fx: Lateral movement of eye | VI. Abducens |
Connection: Taste buds to brain; brain to facial muscles Fx: Sense of taste on anterior 2/3 of tongue; contraction of muscles of facial expression | VII. Facial |
Connection: Ear to brain Fx: Hearing;sense of balance | VIII. Acoustic |
Connection: throat/taste buds to brain; brain to throat muscles/salivary glands | IX. Glossopharyngeal |
Connections: throat, larynx, organs of abd./thoracic cavity to brain; Brain to muscles of throat, organs of abd./thoracic cavity. Fx: Sensation of throat,larynx, organs;swallowing;voice;slowing of pulse;acceleration of peristalsis | X. Vagus |
Connection: Brain to Shoulder/neck muscles Fx: Shoulder movements; turning of head | XI. Spinal accessory |
Connection: Brain to muscles of tongue Fx: Tongue movements | XII. Hypoglossal |