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Fight-or-flight response, artwork
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Fight-or-flight response, artwork
Fight-or-flight response. Artwork showing the bodys fight-or-flight response to a threat. Visual perception (yellow arrow) can trigger fear memories controlled by the brains amygdala (yellow). Signals generated by the hypothalamus (pink) can directly release stress hormones (red arrows) into the bloodstream that trigger the adrenal glands (light brown) on top of the kidneys (lower centre). These release the hormones adrenaline and noradrenaline, which increase heart rate, increase blood pressure, increase blood flow to the muscles, speeds thinking. The pituitary gland (below hypothalamus, not highlighted) also plays a key role
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9221071
© CLAUS LUNAU/SCIENCE PHOTO LIBRARY
Adrenal Gland Adrenaline Afraid Amygdala Bloodstream Diagram Endocrine Endocrinology Fear Fight Fright Glands Hormonal Hypothalamus Kidney Kidneys Messaging Noradrenaline Organs Physiology Pituitary Reacting Responding Response Signaling Signalling Stimulus Blue Background Brain Cutouts
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This artwork titled "Fight-or-flight response" by Claus Lunau beautifully captures the body's physiological reaction to a threat. The intricate illustration showcases the complex interplay between various organs and chemical messengers involved in this primal survival mechanism. At the center of attention is the brain's amygdala, highlighted in yellow, which controls fear memories triggered by visual perception represented by the yellow arrow. Moving downwards, we see the pink hypothalamus generating signals that directly release stress hormones into the bloodstream through red arrows. These hormones activate the adrenal glands atop our kidneys (depicted in light brown), causing them to release adrenaline and noradrenaline. The effects of these powerful hormones are vividly portrayed as they surge throughout our body - increasing heart rate, blood pressure, and blood flow to muscles while enhancing cognitive processing speed. The pituitary gland also plays a significant role in coordinating this response but remains unhighlighted below the hypothalamus. Lunau's meticulous cut-out style against a blue background adds depth and clarity to each organ's depiction, emphasizing their importance within this intricate biological process. This artwork not only educates viewers about our fight-or-flight response but also serves as an artistic testament to human biology and its remarkable ability to adapt when faced with danger or perceived threats.
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