Author Question: Spoon-shaped finger nail beds may indicate a(n) ________ deficiency in the body. (Read 85 times)



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wuly

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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