单词	norepinephrine
释义	norepinephrine /ˌnɔːrɛpɪˈnɛfrɪn / /ˌnɔːrɛpɪˈnɛfriːn/ noun Another term for noradrenaline.When you're under stress your adrenal glands produce the hormones cortisol, norepinephrine, and adrenaline.... Within the adrenal medulla dopamine is converted to norepinephrine and epinephrine. As a natural response to a diseased heart, the body releases the hormone norepinephrine, causing the heart to beat up to five times faster than normal. Origin 1940s: from nor- + epinephrine.
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