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Thomadaki Fall 2010

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Origin of CN V   - Nucleus of spinal tract of trigeminal [P&T]/ midpons - C5 - Chief sensory nucleus [touch]/midpons - Mesencephalic nucleus [proprioception]/ midpons-midbrane - Motor nucleus [muscles of mastication]  
Branches of CNV   VI - opthalmic V2 - maxillary V3 - mandibular  
V1 (opthalmic) exits the skull via ____   SOF  
V2 (maxillary) exits the skull via _____   Foramen Rotundum  
V3 (mandibular) exits the skull via _____ and the meningeal branch of V3 re-enters the skull with the ______ through ________   Foramen Ovale; middle meningeal artery, foramen spinosum  
Sensory function of CN V   Sensory to face, scalp, teeth, most of tongue, oral & nasal mucosa, dura mater, cerebral blood vessels.  
Sensory fibers coming in from all 3 divisions are _______ cells whose cells bodies are in the _____ or _____ ganglion or ________ (in the case of parasympathetic)   Pseudounipolar; trigeminal, semilunar, mesencephalic  
Motor function of CN V   - Muscles of mastication (masseter, temporalis, medial & lateral pterygoid muscles) - Tensor tympani & tensor veli palatini muscles - Myloyoid & ANTERIOR BELLY of digastric muscle  
Exam for CN V   Touch by cotton swab; pain by pinprick; temp; corneal reflex; jaw reflex; masticatory movements  
Lesion to CN V   Trigeminal neuralgia (tic doulareux), facial anesthesia or numbness, inability or difficulty to bite down  


   


 

 

 
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Created by: mrw2013 on 2010-09-18




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