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Did you know?

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.

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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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There are more bacteria in your mouth than there are people in the world.

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When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Erythrocytes (red blood cells) moving through a capillary in single file. Erythrocytes (red blood cells) moving through a capillary in single file.
Olenoides erratus from the Mt. Stephen Trilobite Beds (Middle Cambrian) near Field, British Columbia Olenoides erratus from the Mt. Stephen Trilobite Beds (Middle Cambrian) near Field, British Columbia
Sickle cells in a ¬capillary. Sickle cells in a ¬capillary.
Capillary puncture sites. Capillary puncture sites.
Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ... Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ...
Forces affecting capillary exchange Forces affecting capillary exchange
Video: Anatomy and Chemical Makeup of a Single Hair (Animation)

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