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The anterior pituitary is sometimes called the master gland because it secretes many hormones that r
Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
A Gaucher cell showing accumulated fat stored in structures called lysosomes
Cancer cells can move to new locations in the body, a process called metastasis