| vagus area | A portion of the floor of the fourth ventricle overlying the vagoglossopharyngeal nuclei. (05 Mar 2000) |
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| vagus nerve | <anatomy, nerve> The vagus nerve enervates the gut (gastrointestinal tract), heart and larynx. Lesions of the tenth nerve usually result in a horse voice, but may also cause difficulty in swallowing or talking. Synonym: cranial nerve X. (27 Sep 1997) |
| vagus pulse | A slow pulse due to the inhibitory action of the vagus nerve on the heart. (05 Mar 2000) |