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EXAMINATION OF CRANIAL NERVES
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CRANIAL NERVE |
SENSORY FUNCTION |
MOTOR FUNCTION |
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1 Olfactory |
Smells (alcohol swab, fresh burned match, or coffee). |
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2 Optic |
Vision & visual fields (6 cardinal fields of gaze). |
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3 Oculomotor |
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Extraocular & pupillary eye movements, lens shape. |
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4 Trochlear |
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Down & inward eye moves. |
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5 Trigeminal |
Sensation of face, scalp, cornea, oral & nasal mucosa |
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6 Abducens |
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Lateral eye movements. |
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7 Facial |
Taste on anterior 2/3 of
tongue. |
Facial moves, (eye closure,
smile, frown, puff cheeks, raise eyebrows). |
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8 Acoustic |
Hearing & balance. |
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9 Glossopharyngeal |
Taste posterior 1/3 of tongue, gag reflex, ear drum &
ear canal sensation. |
Swallowing & vocal cord movement. |
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10 Vagus |
Sensations of pharynx, viscera, carotid body, carotid sinus. |
Swallowing & talking muscles of palate,
pharynx, larynx, (makes guttural sounds). |
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11 Spinal |
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Trapezius & sternocleidomastoid movements (move head, shrug
shoulders). |
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12 Hypoglossal |
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Tongue movements (protrude tongue). |
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