Artwork of hypothalamus and human biological clock

Artwork of hypothalamus and human biological clock

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Credit: LEONARD E. MORGAN, CUSTOM MEDICAL STOCK PHOTO/SCIENCE PHOTO LIBRARY

Caption: Biological clock. Illustration of the biological clock that controls circadian (daily) rhythms in the human body. Various physiological functions, such as urination (represented by kidney), sleep (eye), temperature (thermometer) and heartbeat, are known to vary on a daily cycle in humans. A key part of the brain involved in controlling the cycles is the hypothalamus (red), which controls a number of the body's autonomic functions via nervous signals and hormones.

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Keywords: anatomy, artwork, biological, biological clock, brain, central nervous system, circadian rhythm, clock, cns, human body, hypothalamus

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