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Anatomy Exam #3
Chapters 12-17
12
Anatomy
Undergraduate 1
04/10/2011

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Term
Olfactory Nerve 1
Definition
Sensory nerve that transmits sense of smell
Term
Optic Nerve 2
Definition
Sensory nerve that transmits visual information to the brain
Term
Oculomotor Nerve 3
Definition
Mainly motor. Innervates all rectus' and inferior oblique, which collectively perform most eye movements; also innervates m. sphincter pupillae, as well as the muscles of the ciliary body
Term
Trochlear Nerve 4
Definition
Mainly motor. Innervates superior oblique muscle, which depresses, rotates laterally, and intorts the eyeball.
Term
Trigeminal Nerve 5
Definition
Mixed. Receives sensation from the face and innervates the muscles of mastication; Located in the superior orbital fissure
Term
Abducens Nerve 6
Definition
Motor. Innervates the lateral rectus, which abducts the eye
Term
Facial Nerve 7
Definition
Mixed. Motor innervation to the muscles of facial expression, posterior belly of the digastric muscle, and stapedius muscle, receives the special sense of taste from the anterior 2/3 of tongue, and secretomotor innervation to the salivary glands
Term
Vestibulocochlear Nerve 8
Definition
Sensory. Senses sound, roation and gravity (balance and movement) Vestibular branch carries impulses for equilibrium and the cochlear branch carries carries impulses for hearing. Acoustic Canal
Term
Glossopharyngeal Nerve 9
Definition
Mixed. Medulla. Taste from 1/3 posterior of tounge. Secretomotor to parotid gland and motor innervation to stylopharyngeus. Sensation is relayed to opposite thalamus and some hypothalamic nuclei
Term
Vagus nerve 10
Definition
Mixed. Branchiomotor innervation to most laryngeal and all pharyngeal muscles. Provides parasympathetic fibers to nearly all thoracic and abdominal viscera down to the splenic flexure; all special sense of taste from the epiglottis. *Controls muscles for voice and resonance and the soft palate.
Term
Accessory Nerve 11
Definition
Motor. Controls sternocleidmastoid and trapezius muscles, overlaps with functions of vagus.
Term
Hypoglossal Nerve 12
Definition
Motor. Medulla. Motor innervation to tongue muscles and speech articulation
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