Cranial Nerves

Olfactory I

Fibers transmit impulses associated with smell

sensory

What is olfactory I sensory, motor, mixed?

Optic II

Fibers transmit impulses associated with vision

sensory

What is optic II sensory, motor, mixed?

Olculomotor III

Motor impulses to muscles that: Raises eyelids, Move the eyes, Focus the lens, Adjust light entering eye

motor

What is olculomotor III sensory, motor, mixed?

Trochlear IV

help direct activity movement of the eye

motor

What is trochlear IV sensory, motor, mixed?

Trigminal V

"3 Sisters" : Opthalmic division, Maxillary division & Mandibular division

both

What is trigminal V sensory, motor, both?

Abducens VI

Motor impulses to muscles that move eye

motor

What is abducens VI sensory, motor, mixed?

Facial VII

Motor to muscles of facial expression, tear glands, and salivary glands

both

What is facial VII sensory, motor, both?

Vestibulococlear VIII

acoustic & auditory nerve

sensory

What is vestibulococlear VIII sensory, motor, mixed?

Glossopharyngeal IX

- Sensory from pharynx, tonsils, tongue & carotid arteries

- Motor to salivary glands & muscle of pharynx

both

What is glossopharyngeal IX sensory, motor, both?

Vagus X

- Somatic motor to muscle of speech & swallowing

- Autonomic motor to viscera of thorax & abdomen

- Sensory from pharynx larynx, esophagus & viscera of thorax & abdomen

both

What is vagus X sensory, motor, both?

Accessory XI

- "Spinal" accessory b/c:

~ Cranial branch: motor to muscles of soft palate, pharynx & larynx

~ Spinal branch: motor to muscles of neck & back. Some sensory

motor

What is accessory XI sensory, motor, mixed?

Hypoglossal XII

Motor to muscles of the tongue

motor

What is hypoglossal XII sensory, motor, mixed?