The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Did you know?
According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.
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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.
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Excessive alcohol use costs the country approximately $235 billion every year.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Pituitary Gland
Feedback mechanisms of the thyroid gland.
The thyroid gland.
Mechanism of the thyroid gland showing a stimulus (1) that causes the release of TSH (2) and then ...
