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Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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The average adult has about 21 square feet of skin.

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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Types of obligatory salt and water exchanges in a terrestrial animal. Types of obligatory salt and water exchanges in a terrestrial animal.
Cross-pollination and selfing are two types of crosses Cross-pollination and selfing are two types of crosses
Types of suture material. Types of suture material.
Stereotaxic surgery: implanting an electrode in the rat amygdala. Stereotaxic surgery: implanting an electrode in the rat amygdala.
Types of Drug Interactions Types of Drug Interactions
Two Types of Cells Two Types of Cells
Video: Pressure Flow Model Animation

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