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Neuro II - CN X
Thomadaki Fall 2010
Question | Answer |
---|---|
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. |