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UB ANA 113 Lec 18 A

Cranial Nerves Lecture 18 - NS IV

Cranial Nerve 1 Sensory. Olfactory - smell, 20 rootlets in nasal cavity
Cranial Nerve 2 Sensory. Optic - Vision, Axons of ganglionic cells of retina to thalamus and midbrain, one on R and L
Cranial Nerve 3 Motor. Oculomotor - Extrinsic muscles of the eye (voluntary). Smooth muscle that controls shape of pupil and lens (involuntary).
Cranial Nerve 4 Motor. Trochlear - One muscle that moves the eyeball
Cranial Nerve 5 Both. Trigeminal - Sense:head region. Motor: Muscles of Mastication(temporalis, Masseter, Medial&Lateral pterygoids)
Cranial Nerve 6 Motor. Abducens - skeletal muscle of the eye
Cranial Nerve 7 Both. Facial - Motor: facial expression muscles. Sense: Earlobe Control secretion of saliva and lacrimal gland. Taste from Anterior 2/3 of tongue
Cranial Nerve 8 Sensory. Vestibulocochlear - balance and hearing
Cranial Nerve 9 Both. Glossopharyngeal - Sense: pharynx and 1/3 posterior tongue. Motor: pharynx muscle
Cranial Nerve 10 Both. Vagus - Motor: larynx, Autonomic fibers = smooth muscle of thorax, abdomen, and heart. Sense: Larynx and external auditory meatus. Biggest auditory nerve
Cranial Nerve 11 Motor. Accessory - control trapezius and sternocleidomastoid
Cranial Nerve 12 Motor. Hypoglossal - control muscles of tongue
Created by: HugsAndKisses



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