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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.
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
The average office desk has 400 times more bacteria on it than a toilet.
The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
![Lungs: RUL = Right Upper Lobe, RML = Right Middle Lobe, RLL = Right Lower Lobe, LUL = Left Upper Lob](https://biology-forums.com/gallery/47/medium_2137_21_07_12_5_28_25.jpeg)
![Bronchoscopy. Figure illustrates physician using a bronchoscope to inspect the patient’s bronchial t](https://biology-forums.com/gallery/47/medium_14755_10_09_12_7_14_27_8493756.jpeg)