12 Cranial Nerves - by roman numerals

I

Olfactory

II

Optic

III

Oculomotor

IV

Trochlear

V

Trigeminal

VI

Abducent

VII

Facial

VIII

Vestibulocochlear

IX

Glossopharyngeal

X

Vagus

XI

Accessory

XII

Hypoglossal

Olfactory Nerve Function

Smell

Optic Nerve Function

Vision

Oculomotor Nerve Function

Motor to eye muscles
Superior, medial and inferior rectus
inferior oblique
Upper eyelid (levator palpebrae superioris)
Sphincter of pupil (causes constriction)
cilary muscle of lens ( causes accommodation)

Trochlear Nerve Function

motor of the eye muscle
(superior oblique)

Trigeminal Nerve Function

V1 - Ophthalmic Branch
V2- Maxillary Branch
V3 - Mandibular Branch

Abducent Nerve Function

Motor to eye muscle
(lateral rectus)

Facial Nerve Function

Sense of taste of 2/3 of tongue
Glands (parasympathetic)
*submandibular salivary gland
*sublingual salivary gland
*lacrimal gland
*glands of the nasal cavity and palate

Vestibulocochlear Nerve Function

Hearing and balance
cochlear nerve / vestibular nerve

Glossopharyngeal Nerve Function

Taste from posterior 1/3 of tongue
*motor function to pharyngeal

Vagus Nerve Function

Parasympathetic function to the thoracic and abdominal viscera
*wandering nerve
*gag reflex
*heart (BP)
*visceral organs
*swallowing

Accessory Nerve Function

Motor to sternocleidomastoid and trapezius
*head and shoulder movement

Hypoglossal

Intrinsic and extrinsic tongue muscles ( styloglossus, hypoglossus, and genioglossus)
and throat muscles
(thyrohyoid and geniohyoid)