Cranial Nerves
• II-visual fields; consensual pupillary response
• III, IV, VI - pupillary reactivity/anisocoria ; extraocular movements.
doll's eyes- positive=eyes deviate in opposite direction of head turn .
cold calorics- positive=eyes deviate ton ically toward i rrigated ear;
with or without nystagmus away from irrigated ear.
• V - facial sensation ; cornea l reflex (sensory) - eyebl ink when cornea
touched with cotton wisp.
• VII - facial expression - if forehead movement is spared, lesion is above the
facial nucleus (central); if forehead is weak, lesion is peripheral (Bell's palsy) .
• VIII - hearing
• IX, X - palate symmetry, gag
• XI - head turn (sternocleidomastoid); shoulder shrug (trapezius)
• XII - tongue protrusion - deviates toward weak side