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Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.