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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 most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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There are 20 feet of blood vessels in each square inch of human skin.

Elastic fibres are made of elastin, one type of structural protein found in the ECM of animal cells Elastic fibres are made of elastin, one type of structural protein found in the ECM of animal cells
During World War I, advancing armies unloosed ferocious artillery barrages to destroy deeply entrenc During World War I, advancing armies unloosed ferocious artillery barrages to destroy deeply entrenc
Coolant flow through the impeller and scroll of a coolant pump for a V-type engine. Coolant flow through the impeller and scroll of a coolant pump for a V-type engine.
A typical fuel pulsator used mostly with roller vane-type pumps to help even out the pulsation in ... A typical fuel pulsator used mostly with roller vane-type pumps to help even out the pulsation in ...
Type of pathogen organism Type of pathogen organism
Comparison of C-type Climates Comparison of C-type Climates
Video: Fetal development - Weeks 9 to 38

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