What causes adrenaline to be released?

Biology
Tutor: None Selected Time limit: 1 Day

Not the process of firing neurotransmitters I mean like what signal is sent or what happens outside of the body that would cause epinephrine to be released.

Apr 28th, 2015

First, the sympathetic nervous system (SNS) and adrenocorticoptropin hormone (ACTH) kick off the synthesis of adrenaline. ACTH also causes the adrenal cortex to release cortisol (another stress related hormone) enhancing epinephrine synthesis even further. At the same time, the SNS stimulates the release of epinephrine by the chromaffin cells into the blood stream.Perceived and actual stressors like loud noises, bright lights, higher temperatures, a big meeting with the boss, or anticipating a hard workout or lift. Anything that causes you to feel as though you need to be ready to defend yourself, causes the body stress (real or perceived), or brings you anxiety can cause a release of adrenaline.

Apr 28th, 2015

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Apr 28th, 2015
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Apr 28th, 2015
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