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Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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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.

Organ systems of the body with major functions. Organ systems of the body with major functions.
Living systems such as the human body consist of closely interrelated elements Living systems such as the human body consist of closely interrelated elements
The female and male urinary systems. The female and male urinary systems.
The immune response results from activation of the humoral and cell-mediated immune systems The immune response results from activation of the humoral and cell-mediated immune systems
Levels of Structural Organization & Body Systems Levels of Structural Organization & Body Systems
plant tissue systems plant tissue systems
Video: Second Messengers in the Inositol-lipid Signaling Pathway

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