Cranial Nerves

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Sensory: Smell

Olfactory CN I
Motor: Visual acuity, opthalmoscope exam (PERRLA is a nuero assessment)

Optic CN II
Motor: Pupil constriction, elevation of upper eyelid, EOM, downward and medial gaze

Occulomotor CN III
Motor: EOM, superior oblique muscle of the eye, movement down and lateral gaze

Trochlear CN IV
Motor: voluntary muscles of mastication
Sensory: touch, pain: skin of face, mucous membranes of nose, sinuses, and mouth

Trigeminal CN V
Motor: Lateral deviation of the eye

Abducens CN VI
Motor: Muscles of the face (smile, frown)
Sensory: Taste (anterior 2/3 of tongue) sweet and sour

Facial CN VII
Sensory: hearing, balance

Vestibularcochlear CN VIII
Motor: pharynx - gag reflex (must do before feeding), uvula
Sensory: tongue - taste of posterior 1/3 of tongue

Glossopharyngeal CN IX
Motor: pharynx, larynx (speech), autonomic control: bradycardia, hypotension

Sensory: most dangerous nerve to trigger, can't do anything to wake it back up, Triggers: bladder, recturm, carina of bronchus, top of esophagus

Vagus CN X
Motor: sternocleidomastoid, trapezius (muscle strength of shoulder shrug)

Accessory CN XI
Motor: tongue (deviation/protrusion)

Hypoglossal CN XII