LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Adrenaline hormone molecule. Molecular model showing the structure of adrenaline, or epinephrine, a hormone and neurotransmitter. Atoms are colour-coded: carbon (dark grey), hydrogen (light grey), oxygen (red) and nitrogen (blue). It is secreted by the adrenal glands in times of stress and stimulates the body for action in what is known as the fight or flight response.
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