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Cranial Nerves

12 Cranial Nerve functions and assessment

What is cranial nerve one and how is it assessed? Smell- have patient identify a familiar scent with eyes shut
What is cranial nerve two and how is it assessed? Vision acuity- test acuity with snellen chart
What is cranial nerve three, four, and six and how are they assessed? Eyelid elevation, motor movement of eyes- have patient look down, up, side to side, and in. Test pupil reaction with pen light.
What is cranial nerve five and how is it assessed? Chewing, facial and mouth sensation- touch patients face with sharp and soft objects while eyes are closed; have patient open mouth and try to shut jaw; touch eye and both eyes should blink
What is cranial nerve seven and how is it assessed? facial expression, taste, eyelid and lip closure- ask patient to smile, squint, and raise eyebrows
What is cranial nerve eight and how is it assessed? hearing, equilibrium- whisper test; tuning fork; ticking watch
What is cranial nerve nine and how is it assessed? gagging and swallowing- assess gag and swallowing
What is cranial nerve ten and how is it assessed? gagging and swallowing, speech- assess vocal quality
What is cranial nerve eleven and how is it assessed? shoulder movement and head rotation- have patient shrug shoulders and turn head from side to side
What is cranial nerve twelve and how is it assessed? tongue movement- have patient stick out tongue and move it internally from cheek to cheek
Created by: wmisaacharris