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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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
Gorilla night nest constructed in a tree.
A Typical Pattern of Sleep Stages During a Single Night
The Four Seasons - December, 1963 (Oh, What a Night
