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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Gap junctions between adjacent cells Gap junctions between adjacent cells
Wood first appeared in plants called progymnosperms. Wood first appeared in plants called progymnosperms.
Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp
Conversion List Conversion List
A thin cleft, called the synapse, separates one cell from another. A thin cleft, called the synapse, separates one cell from another.
Video: T cell receptors

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