There are 20 feet of blood vessels in each square inch of human skin.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
Water bridge
Blood typing and cross-reactions. The blood type depends on the presence of surface antigens ...
A single overhead camshaft engine with a timing belt that also rotates the water pump.
Blood vessels: (A) normal artery; (B) constriction; (C) arteriosclerosis and atherosclerosis.