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Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
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.
Did you know?
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.