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Anatomy 7.1 p.250

QuestionAnswer
Olfactory Purely sensory; carries impulses for the sense of smell
Optic Purely sensory; carries impulses for vision
Oculomotor Supplies motor fibers to 4 of the 6 muscles (superior, inferior, and medial rectus, and inferior oblique) that direct the eyeball; to the eyelid; and to the internal eye muscles controlling lens shape and pupil size
Trochlear Supplies motor fibers for one external eye muscle (superior oblique)
Trigeminal Conducts sensory impulses from the skin of the face and mucosa of the nose and mouth; also contains motor fibers that activate the chewing muscles
Abducens Supplies motor fibers to the lateral rectus muscle, which rolls the eye laterally
Facial Activates the muscles of facial expression and the lacrimal and salivary glands; carries sensory impulses from the taste buds of anterior tongue
Vestibulocochlear Purely sensory; vestibular branch transmits impulses for the sense of balance, and cochlear branch transmits impulses for the sense of hearing
Glossopharyngeal Supplies motor fibers to the pharynx (throat) that promote swallowing and saliva production; carries sensory impulses from taste buds of the posterior tongue and from pressure receptors of the carotid artery
Vagus Fibers carry sensory from and motor impulses to the pharynx, larynx, and the abdominal and thoracic viscera; most motor fibers are parasympathetic fibers that promote digestive activity and help regulate heart activity
Accessory Mostly motor fibers that activate the sternocleidomastoid and trapezius muscles
Hypoglossal Motor fibers control tongue movements; sensory fibers carry impulses from the tongue
Created by: Brana