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Epinephrine, also known as adrenaline, is a hormone in the body. The Latin roots ad-+renes and the Greek roots epi-+nephros both mean into/onto the kidney, which is a reference to the adrenal glands. In medical jargon, epinephrine is shortened to just "epi" (pronounced eh-pee).
Effects in the body
Epinephrine is very important in short-term stress reaction (see Fight or Flight reaction). Epinephrine increases heart rate, making the pupils bigger, making the blood vessels in the legs bigger, and weakens the immune system for a short time. Because of this, epinephrine is a common treatment for allergy such as Anaphylaxis. Bad reactions to epinephrine include heart palpitations, tachycardia, anxiety, headache, tremor, hypertension, and acute pulmonary edema.
Effects in the lungs
- Aronson, Jeffrey K. "'Where name and image meet'—the argument for 'adrenaline'," British Medical Journal (BMJ). 19 February 2000, Vol. 320, Issue 2733, pp. 506-509; retrieved 2012-11-15.
- Pulvers, Roger. "Jokichi Takamine: a man with fire in his belly whatever the odds," Japan Times, June 28, 2009; retrieved 2012-11-25.