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nucleus ambiguus
anatomy
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function in parasympathetic nervous system
- In human nervous system: Parasympathetic nervous system
…the ventral medulla called the nucleus ambiguus, while those that control functions of the gastrointestinal tract arise from the dorsal vagal nucleus. After exiting the medulla in the vagus nerve and traveling to their respective organs, the fibers synapse on ganglion cells embedded in the organs themselves. The vagus nerve…
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structure of accessory nerve
- In human nervous system: Accessory nerve (CN XI or 11)
…cranial root originates from the nucleus ambiguus and exits the medulla below the vagus nerve. Its fibers join the vagus and distribute to some muscles of the pharynx and larynx via pharyngeal and recurrent laryngeal branches of that nerve. For this reason, the cranial part of the accessory nerve is,…
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