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Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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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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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Types of cell adhesion molecules (CAMs) Types of cell adhesion molecules (CAMs)
The flow of information in a eukaryotic cell The flow of information in a eukaryotic cell
Formation of blood cells Formation of blood cells
Recognition of conformational epitopes by B cells. Recognition of conformational epitopes by B cells.
Selected Topical Corticosteroids for Dermatological and Oral Lesions Selected Topical Corticosteroids for Dermatological and Oral Lesions
Experimental evidence that signals from dorsal lip cells initiate amphibian gastrulation. A dorsal l Experimental evidence that signals from dorsal lip cells initiate amphibian gastrulation. A dorsal l
Video: PET Scan Animation

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