12 Cranial Nerves

Olfactory

(I)
Sensory
Smell

Optic

(II)
Sensory
Vision

Oculomotor

(III)
Motor
Eye movement, pupil constriction, and lens shape

Trochlear

(IV)
Motor
Eye movement (superior oblique muscle)

Trigeminal

(V)
Both
Facial sensation (touch, pain) and chewing

Abducens

(VI)
Motor
Eye movement (lateral rectus muscle)

Facial

(VII)
Both
Facial expression, taste, salivary/ lacrimal gland secretion

Vestibulocochlear

(VIII)
Sensory
Hearing and balance

Glossopharyngeal

(IX)
Both
Taste, swallowing, salivary gland secretion

Vagus

(X)
Both
Autonomic control of heart, lungs, digestive tract, and sensory input from thoracic/ abdominal organs

Accessory

(XI)
Motor
Shoulder and neck movement

Hypoglossal

(XII)
Motor
Tongue movement