Nutrition and Oral Medicine (Nutrition and Health)

354Cranial Nerve AssessmentCranial Nerve Function Examination PresentationI. Olfactory S Sensation to nasal mucosa. Smell. S Test presence and ability to distin- S Limitation in ability to smell.guish scents using fragrant foods,flavor extracts, or spices.II. Optic S Visual acuity. Visual field. Convey S Stand behind patient with arms S Limitation in ability to see.visual information from the retina. extended outward. Bring armstogether and have patient identifywhen they can see your hands.III. Oculomotor M Motor function to eye, pupillary M Test movement of eye with “H” M Limitation in ability to move eyeconstriction to light. or “box” test. Test pupillary light downward, upward or toward nosereaction with penlight.(adduction), unable to adapt to lightTest III, IV, VI together.and dark. Ptosis (drooping eyelid).IV. Trochlear M Motor function to superior oblique Test III, IV, VI together. M Limitation in ability to move eyemuscle.downward and inward. Double vision.V. Trigeminal a S Sensation to dura, skin of forehead, S Test face along the mandible, S Decreased facial or oral sensation.scalp, roof of nasal cavity, nose, maxilla, and forehead with sharp • Droolingskin around the eye, cheek, lip, (pinprick), dull (tongue depressor), • Pocketing of foodteeth, hard palate, ear, chin, lining and light touch (cotton swab). M Weak jaw closing, asymmetricof cheek and gums. M Have patient open and close the opening, muscle atrophy.M Mastication. Motor function to jaw. Then have patient resist • Easily fatiguestemporalis, masseter, medial and attempts of examiner to close jaw. • Food leakagelateral pterygoid, mylohyloid.VI. Abducens M Motor function to lateral rectus Test III, IV, VI together. M Limitation in ability to follow objectmuscle (for precise movement ofwith eye, or move away from nosethe eye for visual tracking or fixa-(abduction).tion on an object).354 Appendix D / Cranial Nerve Assessment