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53.3 x 40.6 cm ⏐ 21.0 x 16.0 in (300dpi)
GREG WILLIAMS / SCIENCE PHOTO LIBRARY GREG WILLIAMS / SCIENCE PHOTO LIBRARY
Epinephrine, also called adrenaline is both a hormone produced by the adrenal glands and a neurotransmitter produced by certain neurons. Epinephrine is produced in times of stress as part of the fight-or-flight response. Atoms are represented as spheres and are colour-coded: carbon (black), hydrogen (white), nitrogen (blue) and oxygen (red).
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