Facial Nerves
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12 terms
Portuguese | English |
|---|---|
 Olfactory (l) | -provides sense of smell -damage causes impaired sense of smell |
| optic (ll) | -provides vision -damage causes blindness |
| Oculomotor (lll) | -provides some eye movement; opening of eyelid -constriction of pupil (parasympathetic) -focusing -damage causes drooping of eyelid, dialated pupil, double vision, diff. focusing, inability to move eye in certain directions |
| Trochlear (lV) | -provides eye movement -damage causes double vision (diplopia), and inability to rotate eye downward & upward |
| Trigeminal (V) | -3 branches -----opthalmic, maxilarry, & mandibular -main sensory nerve to face (touch, pain, & temp) -muscles of mastication -damage causes loss of sensation and impaired chewing |
| Abducens (Vl) | -provides eye mvmt (lateral rectus) -damage causes inibility to rotate eye laterally -at rest eye rotates medially -strabismus-crosseyed |
| Facial (Vll) | -provides facial expressions, taste on anterior 2/3s of tounge -salvary and tear glands, nasal and palatine glands -damage results in sagging facial muscles (ptosis and corner of mouth droops), disturbed tastes (no sweet or salty sensations) |
| Auditory (vestibulochlear) (Vlll) | -provides hearing and sense of balance -damage produces deafness, diziness, nausea, loss of balance, and nystagmus(invol eye mvmt) |
| glossopharyngeal (lX) | -provides control over swallowing, salivation, gagging, sensations of posterior 1/3s of tounge, control of bp and respiration (receptors in carotid) -damage results in loss of bitter & sour tastes, and impaired swallowing (dysphagia) |
| Vagus (X) | -innervertes the pharyns, larynx, & abdominal and thoracic viscera (int. organs) -most motor fibers are parasympathetic that control digestion & help regulate heart activity -damage causes hoarsness of loss of voice, impaired swallowing |
| Accessory (Xl) | -provides swallowing; head, neck & sholder mvmt ------ head turns toward injured side -damage causes impaired head, neck, & sholder mvmt |
| Hypoglossal (Xll) | -provides tounge mvmts of speech, food manipulation, and swallowing -damage: inavility to protrude tounge is vilateral damage -deviation towards injured side |
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