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ANAT 711 cranial nn.
| Question | Answer |
|---|---|
| sits on cribiform plate of ethmoid bone | olfactory n. (CN I) |
| goes through optic canal | optic n. (CN II) |
| goes through superior orbital fissure | oculomotor, trochlear, ophthalmic, and abducens (CN III, IV, V1, VI) |
| goes through foramen rotundum | maxillary (V2) |
| goes through foramen ovale | mandibular (V3) |
| goes through auditory canal | facial and vestibulocochlear (CN VII and VIII) |
| goes through jugular foramen | glossopharyngeal, vagus, and spinal accessory (CN IX, X, XI) |
| goes through hypoglossal canal | hypoglossal (CN XII) |
| also goes through foramen magnum | spinal accessory (CN XI) |
| sensory, special sensory for smell | olfactory n. (CN I) |
| sensory, carries visual info from retina back to brain, nerves cross | optic n. (CN II) |
| motor, innervates extraocular eye muscles except for two | oculomotor n. (CN III) |
| motor innervation to lateral rectus m. | abducens n. (CN VI) |
| motor innervation to superior oblique m. | trochlear n. (CN IV) |
| sensory to facial skin | trigeminal n. (CN V) |
| division of trigeminal; sensory; branches are supraorbital, supratrochlear, frontal, lacrimal, nasociliary | ophthalmic n. (CN V1) |
| division of trigeminal; sensory; distributes sensory branches to orbit, nasal cavity, pharynx, and oral cavity | maxillary n. (CN V2) |
| division of trigeminal; sensory and motor; supplies to mucous membrane and floor of oral cavity, external ear, lower lip, chin, anterior 2/3 of tongue, lower teeth and gums, muscles of mastication | mandibular n. (CN V3) |
| sensory and motor branches, innervates muscles of facial expression, chorda tympani is a branch, 6 other branches | facial n. (CN VII) |
| motor and sensory, sensory for posterior tongue and pharynx, motor portion innervates stylopharyngeus m., innervates parotid gland, supplies special sensory for taste of posterior 1/3 of tongue | glossopharyngeal n. (CN IX) |
| sensory and motor; largest portion innervates heart, lungs, digestive tract; motor part controls almost all pharyngeal and upper esophageal muscles as well as all muscles of larynx | vagus n. (CN X) |
| motor, does not arise from brainstem, innervates SCM and trapezius | spinal accessory n. (CN XI) |
Created by:
emma.scarmon-coyotes
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