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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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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There are more sensory neurons in the tongue than in any other part of the body.
Terrestrial plants and animals can be characterized by analogous pathways for water gain and loss.
Water Loss Through Evaporation
American soldiers—some of them regulars in deep blue uniforms, others in buckskin cowboy outfits— fi
Spanish-American War: Caribbean Theater, 1898
Age-standardized disability-adjusted life year (DALY) rates from hepatitis B by country (per 100 000 ...
You deposit $2000 each year into an account earning 4% interest compounded annually. How much ...