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Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

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Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

The internal structures of the outer, middle, and inner ear. The internal structures of the outer, middle, and inner ear.
The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th
elbow bones elbow bones
Bones of the foot Bones of the foot
Long bones develop from several bony centers--one for the shaft and at least one for each end. The e Long bones develop from several bony centers--one for the shaft and at least one for each end. The e
Tiny embryonic stem cells Tiny embryonic stem cells
Video: Gastrin (protein digestion)

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