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Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

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In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Cross-section of wrist showing tendons and nerves involved in carpal tunnel syndrome. Cross-section of wrist showing tendons and nerves involved in carpal tunnel syndrome.
Cross section of a myocardial infarction. Cross section of a myocardial infarction.
A section through the human brain A section through the human brain
Transverse section of posterior eyeball at optic disc Transverse section of posterior eyeball at optic disc
How many electrons flow past a given cross section of the wire in 10.3 min? electrons How many electrons flow past a given cross section of the wire in 10.3 min? electrons
Opener A colorized cross section of the human brain Opener A colorized cross section of the human brain
Video: Structures that affect circulation - venous return

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