Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Absorption of light energy by an electron
Electron micrograph of phage infection
Scorpions, Spiders and Sharks: Electron-Microscope Images
An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution
Electron micrograph of mitochondrial DNA derived from the frog Xenopus laevis
Electron micrograph of the bacterium Escherichia coli