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CN XII
hypoglossal

motor of the tongue

test by looking at tongues semetry and position
CN XI
Spinal accessory

Motor- sternoclidomastoid and upper portion of trapezius

Test shoulder and neck movements
CN X
Vagus

motor- palate, pharnyx and larynx

sensory- pharynx and larynx

test: swallow, should have rise of palate gag reflew voice and speech
CN IX
Glossopharyngeal

motor- pharynx
sensory- pharnyx and posterior 1/3 of tongue

test swollow rise of palate and gag reflex
CN VIII
Acoustic

hearing cochlear and balance vestibular

test hearing
CN VII
Facial

motor facial movement
sensory- anterior 2/3rd of tongue (salty, sweet, sour, bitter)

test facial movement
CN VI
Abducen

lateral deviation of the eye

test extraocular movements
CN V
Trigeminel

motor- jaw movement muscle temporal and masseter

Sensory- three branches ophtalmaic, maxillary, mandibular

test corneal reflexes, facial sensation, jaw movement
CN IV
Trochelar

motor- downward and internal eye rotation

test- extraocular movements
CN III
Ocularmotor

motor pupillary constriction, open eyes and most ocular movement (all but out and down)

test pupillary restriction
CN II
Optic

Vision

test visual acuity, visual fields, and ocular fundi
CN I
Olfactory

sense of smell
test: occlude each nostril and present a nonirritating smell
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