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Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Digestive System Digestive System
Disorders and Diseases of the Digestive System Disorders and Diseases of the Digestive System
The dorsal-column medial-lemniscus system. The pathways from only one side of the body are shown. The dorsal-column medial-lemniscus system. The pathways from only one side of the body are shown.
Internal organs of the female reproductive system within the pelvis Internal organs of the female reproductive system within the pelvis
Circulatory System of a Shark Circulatory System of a Shark
Regulation can occur at any stage in the expression of genetic material in eukaryotes Regulation can occur at any stage in the expression of genetic material in eukaryotes
Video: Osteoporosis

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