Cranial Nerves Functions

I. Olfactory

Responsible for the sense of smell

II. Optic

Responsible for vision

III. Oculomotor

Controls eye movement and regulates pupil size

IV. Trochlear

Involved in eye movement

V. Trigeminal

Innervates the face and muscles of mastication (chewing)

VI. Abducens

Responsible for eye movement

VII. Facial

Innervates muscles of facial expression

VIII. Vestibulocochlear

Responsible for hearing and balance

IX. Glossopharyngeal

Responsible for taste, saliva secretion, and pharynx movement

X. Vagus

Innervates viscera, heart, pharynx, and larynx

XI. Spinal accessory

Innervates muscles involved in head, shoulder, pharynx, and larynx movement

XII. Hypoglossal

Innervates muscles involved in tongue movement