vagus nerve

noun

va·​gus nerve ˈvā-gəs- How to pronounce vagus nerve (audio)
: either of the 10th pair of cranial nerves that arise from the medulla oblongata and supply chiefly the viscera especially with autonomic sensory and motor fibers

called also vagus

Examples of vagus nerve in a Sentence

Recent Examples on the Web
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In another study, from the Journal of Personality and Social Psychology, poorer people who were shown images of suffering exhibited a stronger response in their vagus nerve, which is known to activate emotional sensations. Alex Morris, Rolling Stone, 15 June 2025 Those neurons send signals up the vagus nerve (3) to the brain, where a region called the hypothalamus (4) commands the body to reduce glucose production and increase glucose uptake. Sangeeta S. Chavan, IEEE Spectrum, 9 June 2025 Singing, humming, laughing and even gargling stimulate the vagus nerve, and cold-water exposure can activate it and enhance its tone. 4. Paul Von Zielbauer, Los Angeles Times, 6 June 2025 Here’s my honest review of this effective vagus nerve stimulation device. Maggie Ryan, Flow Space, 16 June 2025 See All Example Sentences for vagus nerve

Word History

Etymology

borrowed from New Latin vagus nervus, literally, "wandering nerve,"; so called from its multiplicity of connecting points in the neck, thorax, and abdomen — more at vague

First Known Use

1856, in the meaning defined above

Time Traveler
The first known use of vagus nerve was in 1856

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Cite this Entry

“Vagus nerve.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vagus%20nerve. Accessed 26 Jul. 2025.

Medical Definition

vagus nerve

noun
: either of the tenth pair of cranial nerves that arise from the medulla and supply chiefly the viscera especially with autonomic sensory and motor fibers

called also pneumogastric nerve, tenth cranial nerve, vagus

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