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Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Did you know?
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.