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Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

A permanent epicardial pacemaker. The pulse generator can be placed in subcutaneous pockets in the s A permanent epicardial pacemaker. The pulse generator can be placed in subcutaneous pockets in the s
(PDB ID 1MBO) Orientation of the protein is similar in (PDB ID 1MBO) Orientation of the protein is similar in
Anterior and posterior directions Anterior and posterior directions
Posterior view of major muscles. Posterior view of major muscles.
The nasal regions. The nasal regions.
Turn head for access to posterior cervical muscles. Locate TrPs along posterior cervical muscles, ... Turn head for access to posterior cervical muscles. Locate TrPs along posterior cervical muscles, ...
Video: Steps of glucose catabolism

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