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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Structure of an ovule developing into a seed. Structure of an ovule developing into a seed.
The structure of the lacrimal apparatus. The structure of the lacrimal apparatus.
The Freudian Structure of Personality The Freudian Structure of Personality
Example of Tabular List organization levels and formatting. Example of Tabular List organization levels and formatting.
Global Climate Change Global Climate Change
Comparing the structure of a primary shoot from (A) a monocot and (b) a eudicot. Comparing the structure of a primary shoot from (A) a monocot and (b) a eudicot.
Video: Gastrin (gastric emptying) & Secretin (buffering gastric acid)

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