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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.

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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

The nucleus and nuclear envelope The nucleus and nuclear envelope
Use of fluorescent molecules by Lowenstein and colleagues to determine the size of gap-junction chan Use of fluorescent molecules by Lowenstein and colleagues to determine the size of gap-junction chan
Tubal ligation. To minimize the size of the incisions necessary, laparoscopic surgery may be used to Tubal ligation. To minimize the size of the incisions necessary, laparoscopic surgery may be used to
Chart depicting pupillary size in millimeters Chart depicting pupillary size in millimeters
Chimpanzees and horses have brains that are similar in size. Chimpanzees and horses have brains that are similar in size.
The proboscis monkey demonstrates that large gut size contributes to a lower EQ. The proboscis monkey demonstrates that large gut size contributes to a lower EQ.
Video: Muscular Dystrophy

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