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Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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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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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.

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For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Sickled and normal red blood cells Sickled and normal red blood cells
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
(A) Tetralogy of Fallot; (B) normal anatomy. (A) Tetralogy of Fallot; (B) normal anatomy.
How to find the tangential and normal components of a vector How to find the tangential and normal components of a vector
Cancerous cells versus normal cells Cancerous cells versus normal cells
Normal (A) and Abnormal (B) Balance between Dopamine and Acetylcholine Normal (A) and Abnormal (B) Balance between Dopamine and Acetylcholine
Video: A Human Karyotype Preparation Animation

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