The vagus nerve gives rise to preganglionic parasympathetic fibers involved in regulating most thoracic and abdominal organs.

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The vagus nerve is one of the main cranial nerves and gives rise to preganglionic parasympathetic fibers that innervate most thoracic and abdominal organs. These fibers are involved in regulating various bodily functions such as digestion, heart rate, and respiratory rate.

The Vagus Nerve Gives Rise to Preganglionic Parasympathetic Fibers Involved