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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

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Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Types of Colostomies Types of Colostomies
Anthropologist Andrea Wiley (left) investigates the effects of high-altitude living on reproductive Anthropologist Andrea Wiley (left) investigates the effects of high-altitude living on reproductive
The WISER entry for hydrogen cyanide (bottom). Useful information includes detailed health ... The WISER entry for hydrogen cyanide (bottom). Useful information includes detailed health ...
Speciation produces new types of organisms Speciation produces new types of organisms
Types of Immunity Types of Immunity
Blood Groups and Blood Types Blood Groups and Blood Types
Video: Knee Animation

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