sympathetic nervous system
noun
: the part of the autonomic nervous system that contains chiefly adrenergic fibers and tends to depress secretion, decrease the tone and contractility of smooth muscle, and increase heart rate compare parasympathetic nervous system
Examples of sympathetic nervous system in a Sentence
Recent Examples on the Web
Caffeine is also believed to stimulate the sympathetic nervous system, which regulates the body’s fight-or-flight response.
—
Lori Youmshajekian, Scientific American, 13 Aug. 2024
Conversely, rapid, intense breathing can stimulate the sympathetic nervous system, increasing alertness and energy.56
Breathwork Techniques
There are many breathwork techniques, each offering unique benefits tailored to different needs and goals.
—Lindsay Curtis, Verywell Health, 29 July 2024
It is released by the body's adrenal glands and triggers the sympathetic nervous system (SNS), which controls the body's natural fight-or-flight response to physical stressors and dangers.
—Laura Schober, Health, 11 July 2024
Sympathetic Nervous System Your sympathetic nervous system (SNS) controls your body's response to stress or physical challenges.
—Rachael Zimlich, Bsn, Rn, Verywell Health, 10 July 2024
See all Example Sentences for sympathetic nervous system 
Lori Youmshajekian, Scientific American, 13 Aug. 2024
Conversely, rapid, intense breathing can stimulate the sympathetic nervous system, increasing alertness and energy.56
Breathwork Techniques
There are many breathwork techniques, each offering unique benefits tailored to different needs and goals.
—Lindsay Curtis, Verywell Health, 29 July 2024
It is released by the body's adrenal glands and triggers the sympathetic nervous system (SNS), which controls the body's natural fight-or-flight response to physical stressors and dangers.
—Laura Schober, Health, 11 July 2024
Sympathetic Nervous System Your sympathetic nervous system (SNS) controls your body's response to stress or physical challenges.
—Rachael Zimlich, Bsn, Rn, Verywell Health, 10 July 2024
See all Example Sentences for sympathetic nervous system
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sympathetic nervous system.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near sympathetic nervous system
Cite this Entry
“Sympathetic nervous system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sympathetic%20nervous%20system. Accessed 19 Sep. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share