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S&F- Chapter 8
The Nervous System- Cranial Nerves
Nerve | Conduct Impulses | Functions |
---|---|---|
I. Olfactory | From nose to brain | Sense of smell |
II. Optic | From eye to brain | Vision |
III. Oculomotor | From brain to eye muscles | Eye movements |
IV. Trochlear | From brain to external eye muscles | Eye movements |
V. Trigeminal | From skin and mucous membrane of head and from teeth to brain; also from brain to chewing muscles | Sensations of face, scalp, and teeth; chewing movements |
VI. Abducens | From brain to external eye muscles | Eye movements |
VII. Facial | From taste buds to tongue to brain; from brain to face muscles | Sense of taste; contractions of muscles of facial expression |
VIII. Vestibulocochlear | From ear to brain | Hearing; sense of balance |
IX. Glossopharyngeal | From throat and taste buds of tongue to brain; also from brain to throat muscles and salivary glands | Sensations of throat; taste, swallowing movements, secretion of saliva |
X. Vagus (longest) | From throat, larynx, and organs in thoracic and abdominal cavities to brain; also from brain to muscles of throat and to organs in thoracic and abdominal cavities | Sensations of throat and larynx and of thoracic and abdominal organs; swallowing, voice production, slowing of heartbeat, acceleration of peristalsis (gut movements) |
XI. Accesory | From brain to certain shoulder and neck muscles | Shoulder movements; turning movements of head |
XII. Hypoglossal | From brain to muscles of tongue | Tongue movements |
On Old Olympus' Tiny Tops, A Friendly Viking Grew Vines and Hops. | (blank) | (blank) |