Flashcards
Cranial Nerves
Cards in this deck (7)
- 1What are the clinical implications of a damaged/paralyzed occulomotor n. (CN III)?Lateral strabismus: inability to pull eyeball medially and dorsally (medial rectus, dorsal rectus muscles not functional)
Ptosis: unable to innervate levator palpebrae superioris m. to lift upper eyelid - 2What types of fibers are present in the occulomotor n. and what do they innervate?General Sensory Efferent: extrinsic muscles of the eyeball
General Visceral Efferent: PS fibers to ocular smooth muscle - 3What types of fibers are present in the trochlear n. and what do they innervate? Consequences of Injury?General Sensory Efferent: supply dorsal oblique muscle of the contralateral side
Injury: dorsolateral strabismus (dorsal oblique m. non-functional; unable to rotate eye the opposite direction - 4What are the major branches of the Trigeminal n.?Opthalmic, Maxillary, Mandibular nerves
- 5What are the terminal branches of the Facial n.? What do they innervate?Cervical branch: partidoauricularis m., ventral aspect of cutaneous trunci
Auriculopalpebral nerve: orbicularis oculi , frontalis m., rostral auricular muscles - 6What nerves contribute to the pharyngeal plexus? What does the plexus supply?Glossopharyngeal (CN IX), Vagus (CN X), Hypoglossal (CN XII)
Supplies pharyngeal muscles (GSE), pharyngeal mucosa (GSA), glands of pharyngeal mucosa (GVE) - 7—
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- Anatomy (Cranial Nerves ) Flashcards on Cranial Nerves , created by Megan Cobarruvias on 16/11/2017.
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- Megan Cobarruvias
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