Cranial Nerves and Their Function

Question

Accepted Answer

Name of Cranial Nerve	Function
I Olfactory	Smell
II Optic	Vision
III Oculomotor	Movement of eyeball and eyelid; constricts pupil; focuses lens
IV Trochlear	Movement of eyeball (down and out)
V Trigeminal	Sensations to the face, including scalp, forehead, cheeks, upper lip, palate, tongue, and lower jaw; chewing
VI Abducens	Lateral movement of eye
VII Facial	Facial expressions, taste, secretion of tears, saliva
VIII Vestibulocochlear	Hearing and equilibrium (balance)
IX Glossopharyngeal	Taste and other sensations of the tongue; swallowing and

secretion of saliva	Name of Cranial Nerve
Function	X Vagus
Swallowing, coughing, voice production; monitors blood	pressure and oxygen and carbon dioxide levels in blood
XI Accessory (also called spinal accessory)	Voice production; skeletal muscles of palate, pharynx, and larynx; movement of head and shoulders
XII Hypoglossal	Movement of tongue during speech and swallowing

Nervous System