Ch.7 Cranial Nerves
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12 terms
Terms | Definitions |
|---|---|
 olfactory (I) | impulses for sense of smell (sensory) |
| optic (II) | impulses for vision (sensory) |
| oculomotor (III) | motor function to 4 of 6 muscles that direct the eyeball ( eyelids, internal eye muscles that control shape and pupil size) |
| trochlear (IV) | motor function to external eye muscle (superior oblique) |
| trigeminal (V) | sensory impulses from skin on face and mucosa of nose and mouth; motor function that activates chewing. |
| abducens (VI) | motor function to lateral rectus muscle (moves eye laterally) |
| facial (VII) | motor function of facial expression, and lacrimal/salivary glands; sensory impulses of the anterior taste buds |
| vestibulocochlear (VIII) | sensory impulses responsible for balance (vestibular branch); sensory impulses for hearing (cochlear branch) |
| glossopharyngeal (IX) | motor function responsible for swallowing and saliva production; sensory impulses responsible for posterior taste buds and pressure receptors of the carotid artery. |
| vagus (X) | motor function and sensory impulses of the pharynx, larynx, and abdominal/thoracic viscera. (most parasympathetic fibers allow regulation of heart activity and promote digestion) |
| accessory (XI) | motor function of the neck muscles (sternocleidomastoid and trapezius) |
| hypoglossal (XII) | motor function and sensory impulses of the tounge |
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