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Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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The average office desk has 400 times more bacteria on it than a toilet.

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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Volvulus. A length of small intestine has twisted around itself, cutting off blood circulation to th Volvulus. A length of small intestine has twisted around itself, cutting off blood circulation to th
Polycystic kidney disease. Notice the presence of numerous fluid-filled sacs, or cysts, in these kid Polycystic kidney disease. Notice the presence of numerous fluid-filled sacs, or cysts, in these kid
Renal corpuscle Renal corpuscle
Diagram of the Glomerulus Diagram of the Glomerulus
Meander Loop on the Colorado River Meander Loop on the Colorado River
Structure of hemoglobin, the oxygen-transporting protein of red blood cells. It consists of four glo Structure of hemoglobin, the oxygen-transporting protein of red blood cells. It consists of four glo
Video: Type of Transport - Active and Passive Processes

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