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Neuro II - CN X

Thomadaki Fall 2010

QuestionAnswer
What are the nuclei of CN X? - Dorsal motor nucleus [parasympathetic]/ medulla - Nucleus ambiguus [motor]/medulla - Nucleus of solitary tract [taste & parasympathetic]/ medulla - Nucleus of the spinal tract of trigeminal [sensory]/ medulla
Where does CN X exit? Post-olivary sulcus
What is the parasympathetic function of CN X? - Parasympathetic to thorax & abdomen
What is the motor function of CN X? Motor to pharyngeal constrictors, intrinsic laryngeal, muscles, palatine muscles (except tensor veli palatini_ and upper esophagus for phonation & swallowing.
What is the taste function of CN X? Taste fibers from larynx & epiglottis
What is the sensory function of CN X? Sensory to pharynx, larynx, the concha of the external ear, and meninges of posterior fossa
What are the symptoms of a lesion to CN X? Hoarseness, dysphagia, loss of gag reflex, and uvular deviation to strong side.
Created by: mrw2013