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Recent Examples of sympathetic nervous system from the Web
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This produces a stress response in your body—specifically, your brain’s hypothalamus triggers your sympathetic nervous system to release norepinephrine (aka adrenaline) and cortisol (a stress hormone) to get you out of harm’s way.
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Your sympathetic nervous system, which causes blood vessels to narrow, is the source of this mechanism.
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Most researchers agree that rest is a physiological state during which your innate fight-or-flight stress response, or sympathetic nervous system, subsides in favor of a more relaxed condition.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sympathetic nervous system.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of sympathetic nervous system
1850
Medical Dictionary
sympathetic nervous system
medical Definition of sympathetic nervous system
Learn More about sympathetic nervous system
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Britannica.com: Encyclopedia article about sympathetic nervous system
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