cranial nerves

anatomy 2300

CN I

olfactory N. - sensory

cribriform foramina

carry smell to brain

CN II

optic N. - sensory

optic canal

vision to brain

CN III

oculomotor N. - motor

superior orbital fissure

movement of eye

CN IV

trochlear N. - motor

superior orbital fissure

depress eyes

abduct eyes

CN V

Trigeminal N. - sensory and motor

3 division:
V1: ophthalmic, superior orbital fissure - sensory
V2: maxillary division, foramen rotundum - sensory
V3: mandibular division, foramen ovale - sensory and motor

CN VI

Abducens N. - motor

superior orbital fissure

abducts eye

CN VII

facial N. - sensory and motor

internal acoustic meatus

motor- facial expression

sensory - taste, anterior 2/3 tongue

CN VIII

vestibulocochlear N. - sensory

internal acoustic meatus

balance hearing

CN IX

glossopharyngeal N. - sensory and motor

jugular foramen

motor - stylopharyngeus

sensory - posterior 1/3 tongue, taste

CN X

Vagus N. - sensory and motor

jugular foramen

motor- voice box, swallowing

sensory- tastebuds

CN XI

accessory N. - motor

jugular foramen

controls trapezius and sternocleidomastoid muscles

CN XII

Hypoglossal N. - motor

hypoglossal canal

tongue muscle