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Cranial Nerves
Name & function of 12 cranial nerves
12
Medical
Graduate
09/18/2011

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Cards

Term
CN I
Definition
Olfactory; CNS tract
Term
CN II
Definition
Optic
Term
CN III
Definition
Oculomotor; some intrinsic & most extrinsic eye muscles
Term
CN IV
Definition
Trochlear; one extraocular eye muscle (superior oblique)
Term
CN V
Definition
Trigeminal; 3 main divisions, great sensory innervation of face & motor supply to muscles of mastication
Term
CN VI
Definition
Abducens; motor to one extraocular eye muscle (lateral rectus)
Term
CN VII
Definition
Facial; motor to muscles of facial expression, taste from tongue
Term
CN VIII
Definition
Vestibulocochlear; special sense of balance & hearing
Term
CN IX
Definition
Glossopharyngeal; motor & sensory to pharynx & sensory to tongue
Term
CN X
Definition
Vagus; motor & sensory to viscera of pharynx, larynx, thoracic cavity, & much of abdominal cavity
Term
CN XI
Definition
Spinal accessory; arises from upper spinal cord to supply sternocleidomastoid & trapezius muscles
Term
CN XII
Definition
Hypoglossal; motor to the intrinsic & extrinsic muscles of the tongue
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