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Did you know?
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.