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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

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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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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

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Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Cnidarians have specialized stinging cells called cnidocytes Cnidarians have specialized stinging cells called cnidocytes
The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil
Commonly Misspelled Medical Terms Commonly Misspelled Medical Terms
Injectable Drugs Commonly Stocked in the Medical Office Injectable Drugs Commonly Stocked in the Medical Office
Commonly Used Anxiolytics: Drugs for Treatment of Generalized Anxiety Disorders Commonly Used Anxiolytics: Drugs for Treatment of Generalized Anxiety Disorders
A commercially available DNA microarray, called a GeneChip, marketed by Affymetrix, Inc A commercially available DNA microarray, called a GeneChip, marketed by Affymetrix, Inc
Video: Autonomic Nervous System Animation

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