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Contents

Olfactory Nerve

The olfactory nerve has only a special sensory component.

Optic Nerve

The optic nerve has only a special sensory component.

Oculomotor Nerve

The oculomotor nerve consists of two components with distinct functions.

Trochlear Nerve

The trochlear nerve has only a somatic motor component.

Abducens Nerve

Has only a somatic motor (general somatic efferent) component.

Facial Nerve

The facial nerve has four components with distinct functions.

Glossopharyngeal

The glossopharyngeal nerve consists of five components with distinct functions.

Vagus Nerve

"Vagus" is from the Latin meaning wandering. This is a fitting name as the nerve wanders from the brainstem to the splenic flexure of the colon.

Accessory Nerve

The accessory nerve has a cranial root and a spinal root, both of which consist of branchial motor fibers.

Hypoglossal Nerve

Has only a somatic motor (general somatic efferent) component.