CRANIAL NERVES

Cranial Nerve I

Olfactory

CN II

Optic Nerve

CN III

Oculomotor Nerve

CN IV

Trochlear Nerve

CN V

Trigeminal Nerve

CN VI

Abducens Nerve

CN VII

Facial Nerve

CN VIII

Vestibulocochlear Nerve/ Auditory

CN IX

Glossopharyngeal Nerve

CN X

Vagus Nerve

CN XI

Accessory Nerve

CN XII

Hypoglossal Nerve

Olfactory Nerve

Carries sensory information for the sense of smell (olfaction) from the nasal cavity to the brain.

Optic Nerve

Visual Information

Oculomotor

Up, Down, Medially movement of eyeball/ eyelid elevation and pupil constriction

Trochlear

Controls superior oblique muscle of eyes/ inward and downward

Trigeminal

Sensation from the face, teeth, tongue/ controls muscles for chewing

Abducens

Controls rectus lateral rectus muscle, eye look outward

Facial Nerve

controls facial expression/ tear glands/ salivary glands/ taste sensations from anterior 2/3 of the tongue

Vestibulocochlear

Hearing/balance/equilibrium

Glossopharyngeal

swallowing and salivation/ taste from the posterior 1/3 of the tongue/ monitoring blood pressure

Vagus Nerve

Regulates visceral activity in thoracic organs (heart rate, digestion, breathing) / Controls swallowing / produces and releases neurotransmitter to release ACh (acetylcholine).

Accessory

Controls sternocleidomastoid and traps enabling head turning, and shoulder shruggingHy

Hypoglossal Nerve

Controls tongue muscles for speech, manipulation of food, and swallowing

Motor (5)

Oculomotor, Trochlear, Abducens, Accessory, Hypoglossal

Sensory (3)

Olfactory, Optic, Vestibulocochlear

Mixed (4)

Trigeminal, Facial, Glossopharyngeal, Vagus