vagus nerve n.
A mixed nerve that arises from numerous small roots from the side of the medulla oblongata and supplies the pharynx, larynx, lungs, heart, esophagus, stomach, and most of the abdominal viscera. Also called pneumogastric nerve, tenth cranial nerve.
|vagus nerve (vā'gəs) Pronunciation Key
Either of the tenth pair of cranial nerves that carries motor impulses from the brain to many major organs. The vagus nerve controls the muscles of the larynx (voice box), stimulates digestion, and regulates the heartbeat.