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olfactory

I purely sensory - carries afferent impulses associated with sense of smell.

optic

II sensory - carries afferent impulses associated with vision

oculomotor

III primarily motor - move eyeball, adjust sight: lens shape control

trochlear

IV Primarily motor - move eyeball

trigeminal

V Mixed; sensory - face and head; motor - muscles of mastication

abducens

VI Motor - carries somatic motor fibers to lateral rectus muscle that moves the eyeball

facial

VII Mixed; sensory - taste buds on anterior tongue; motor - muscles of face and scalp, salivary and tear glands

vestibulocochelar

VIII Sensory - Vestibular branch transmits impulses associated with sense of equilibrium from vestibular apparatus and semicircular canals; cochlear branch transmits impulses associated w/ HEARING from cochlea

glossopharyngeal

IX Mixed; sensory - taste buds on posterior tongue, receptors in pharynx and carotid artery; motor - muscles of pharynx and salivary glands throat and mouth

vagus

X Mixed; sensory - taste buds on tongue and pharynx, thoracic and abdominal organs; motor - muscles of pharynx, larynx, thoracic and abdominal organs throat and mouth

accessory

XI Mixed (mostly motor); muscles of larynx, pharynx, soft palate, shoulder, and neck

hypoglossal

XII Mixed (mostly motor); carries somatic motor fibers to tongue muscles

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