Last Updated
：2025/11/21
sympathetic nervous system
Noun
Japanese Meaning
交感神経系： 自律神経系の一部で、ストレス時に血圧や心拍数を上昇させ、血管を収縮させ、瞳孔を拡大させる作用を持つ神経系
（ plural ）
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(neuroanatomy) The part of the autonomic nervous system that raises blood pressure and heart rate, constricts blood vessels, and dilates the pupils when under stress.
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sympathetic nervous system
During the emergency, the sympathetic nervous system triggered a rapid heartbeat and constricted her blood vessels so she could react quickly.
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During the emergency, the sympathetic nervous system triggered a rapid heartbeat and constricted her blood vessels so she could react quickly.
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