autonomic nervous system
noun
: a part of the vertebrate nervous system that innervates smooth and cardiac muscle and glandular tissues and governs involuntary actions (such as secretion and peristalsis) and that consists of the sympathetic nervous system and the parasympathetic nervous system
Examples of autonomic nervous system in a Sentence
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Scientists found that hearing an infant in distress activates the autonomic nervous system—the body's unconscious control system for functions like breathing and digestion—causing our faces to literally get hotter.
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Daniella Gray, MSNBC Newsweek, 16 Sep. 2025
Consequently, negative adaptation to training stress may involve the autonomic nervous system and result in an altered heart rate.
—Jeff Gaudette, Outside, 5 Sep. 2025
This part of the autonomic nervous system is activated by the vagus nerve, which connects the brain to the heart and other organs.
—Md Published, Verywell Health, 20 Aug. 2025
Several months later, she was finally diagnosed with postural orthostatic tachycardia syndrome (POTS), a disorder involving the autonomic nervous system that causes rapid heartbeat, nausea, brain fog, fainting, and fatigue.
—Alexa Mikhail, Fortune, 20 July 2025
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Daniella Gray, MSNBC Newsweek, 16 Sep. 2025
Consequently, negative adaptation to training stress may involve the autonomic nervous system and result in an altered heart rate.
—Jeff Gaudette, Outside, 5 Sep. 2025
This part of the autonomic nervous system is activated by the vagus nerve, which connects the brain to the heart and other organs.
—Md Published, Verywell Health, 20 Aug. 2025
Several months later, she was finally diagnosed with postural orthostatic tachycardia syndrome (POTS), a disorder involving the autonomic nervous system that causes rapid heartbeat, nausea, brain fog, fainting, and fatigue.
—Alexa Mikhail, Fortune, 20 July 2025
See All Example Sentences for autonomic nervous system
Cite this Entry
“Autonomic nervous system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/autonomic%20nervous%20system. Accessed 19 Sep. 2025.
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