Adrenaline (epinephrine) is a hormone your adrenal glands send through your bloodstream. When you’re scared or stressed suddenly, adrenaline is quickly sent into your body. This is commonly known as an adrenaline rush because it happens so fast.

Epinephrine, also known as adrenaline, is both a neurotransmitter and a hormone. It plays an important role in your body’s “fight-or-flight” response. It’s also used as a medication to treat many life-threatening conditions.

As a hormone, adrenaline acts on nearly all body tissues by binding to adrenergic receptors. Its effects on various tissues depend on the type of tissue and expression of specific forms of adrenergic receptors .

2025年2月5日 · Epinephrine, hormone secreted mainly by the medulla of the adrenal glands that functions primarily to increase cardiac output and raise blood glucose levels. Epinephrine is released during acute stress and is associated with the fight-or-flight response.

2022年1月24日 · Adrenal gland secretes steroid hormones such as cortisol and aldosterone. It also makes precursors that can be converted to sex steroids such as androgen, estrogen. Learn more about adrenal disorders that can be caused by too much or too little of a particular hormone.

2024年1月15日 · Adrenaline (epinephrine) is a hormone released by the adrenal glands as part of the “fight or flight” response. When faced with a threat or stress, the hormone stimulates the nervous system to respond quickly to the crisis.

2024年2月1日 · Adrenaline is also known as the fight-or-flight hormone. It’s released in response to a stressful, exciting, dangerous, or threatening situation. What is adrenaline? Adrenaline, also...