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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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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Activity versus specific activity Activity versus specific activity
Specific Antidotes Specific Antidotes
Hormonal control of adrenal gland. CRH = corticotropin releasing hormone; ACTH = adrenocorticotropic ... Hormonal control of adrenal gland. CRH = corticotropin releasing hormone; ACTH = adrenocorticotropic ...
Select the proper adapter for the compression gauge. The threads on the adapter should match those ... Select the proper adapter for the compression gauge. The threads on the adapter should match those ...
A) Male body louse. (Courtesy of the Centers for Disease Control and Prevention/Frank Collins, Ph.D. ... A) Male body louse. (Courtesy of the Centers for Disease Control and Prevention/Frank Collins, Ph.D. ...
Internal and External Loci of Control Internal and External Loci of Control
Video: The Lagging Strand in DNA Replication and Replication in Action

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