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Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

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More than 4.4billion prescriptions were dispensed within the United States in 2016.

Areas of Referred Pain, Anterior View Areas of Referred Pain, Anterior View
appendicitis appendicitis
Appendicitis. (a) A normal appendix. (b) An inflamed appendix in appendicitis. Appendicitis. (a) A normal appendix. (b) An inflamed appendix in appendicitis.
The S-curve in the human vertebral column--a result of the evolution of bipedality--makes humans hig The S-curve in the human vertebral column--a result of the evolution of bipedality--makes humans hig
The Three Components of Pain The Three Components of Pain
Mechanisms of pain at the nociceptor level. Mechanisms of pain at the nociceptor level.
Video: Facilitated Diffusion - Glucose transport

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