ILS Cranial Nerves

olfactory (1)

optic (2)

oculomotor (3)

trochlear (4)

trigeminal (5)

abducens (6)

facial (7)

vestibulocochlear (8)

glossopharyngeal (9)

vagus (10)

accessory (11)

hypoglossal (12)

olfactory

• nerve 1

• sensory: smell

optic

• nerve 2

• sensory: vision

oculomotor

• nerve 3

• motor: movement of eye + eyelid, constricts pupil

trochlear

• nerve 4

• motor: lateral eye movement (SO4)

trigeminal

• nerve 5

• sensory: facial sensation

• motor: chewing

abducens

• nerve 6

• motor: abduction of eye (LR6)

facial

• nerve 7

• sensory: taste buds (ant. 2/3)

• motor: facial expression, swallow, lacrimal + salivary gland

vestibulocochlear

• nerve 8

• sensory: hearing + balance

glossopharyngeal

• nerve 9

• sensory: taste (post. 1/3), BP, blood gas

• motor: swallowing + parotid gland

vagus

• nerve 10

• sensory: receptors of thorax + abdomen

• motor: pharynx + larynx (speech)

accessory

• nerve 11

• motor: movement of neck + shoulder (trap + sterno)

hypoglossal

• nerve 12

• motor: tongue movement