CRANIAL NERVESHOW ELICITEDNORMAL RESPONSE PATIENTS RESPONSE

I. Olfactory nerve

Ask client to close eyes and identify mild aromas under one nostril with the occluded nares. Repeat with one other nostril.Perception of any odor, identifies scent correctly.

II. Optic nerveAsk client to read a reading materialAble to read words or recognize letters

III. Occulomotor nerveAsk client to follow SNs finger from left to right. Check clients pupil reaction to light using a penlight.Able to follow direction of finger in left and right; pupils equally round and accommodation

IV. Trochlear nerveAsk clients to follow SNs finger in six directions of gazeAble to follow direction of fingers in up and down; pupils equally round reactive to light and accommodation.

V. Trigeminal nerveAssess clients ability to chew and clench teeth.Able to move jaw up and down with appropriate strength. Able to distinguish light touch sensation.

VI. Abducens nerveAssess movement of eyeball and directions of gaze Able to move eyeballs in left and right direction.

VII. Facial nerveAsk the client to smile, raise eyebrows, frown, and puff out cheeks. Assess sense of taste.Able to demonstrate varied facial expressions. Able to distinguish light touch sensation. Able to distinguish different taste.

VIII. Acoustic nerveAssess clients ability to spoken words.Able to hear whispered word at approximately 2 feet away.

IX. Glossopharyngeal nerveAsk client to move tongue from side to side, assess ability to swallow.Positive gag reflex.

X. Vagus nerveAssess clients ability to swallow and hoarseness of voicePositive swallowing reflex

XI. Spinal Accessory nerveAsk client to shrug shoulders and move head from side to side with some resistance from SNs hands.Able to move shoulders through full range.

XII. Hypoglossal nerveAsk client to protrude tongue and move it from side to sideAble to move tongue from side to side