CN I Olfactory
Type: Sensory (S) — Function: Smell
CN II Optic
Type: Sensory (S) — Function: Vision (visual acuity & visual fields)
CN III Oculomotor
Type: Motor (M) — Function: Eye movement (up)
CN IV Trochlear
Type: Motor (M) — Function: Eye movement (down)
CN V Trigeminal
Type: Both (B) — Function: Chewing (motor) & facial sensation (sensory)
CN VI Aducens
Type: Motor (M) — Function: Lateral eye movement
CN VII Facial
Type: Both (B) — Function: Facial expression (motor) & taste anterior 2/3 of tongue
CN VIII Auditory/Vestibulocochlear
Type: Sensory (S) — Function: Hearing & balance (equilibrium)
CN IX Glossopharyngeal
Type: Both (B) — Function: Taste posterior 1/3 tongue & pharynx movement
CN X Vagus
Type: Both (B) — Function: Larynx/pharynx control & gag reflex
CN XI Spinal Accessory
Type: Motor (M) — Function: Head and shoulder movement
CN XII Hypoglossal
Type: Motor (M) — Function: Tongue movement
