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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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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.

Male African lion of the Transvaal subspecies Male African lion of the Transvaal subspecies
Male gorilla Male gorilla
The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th
Male Cat's Reproductive Anatomy Male Cat's Reproductive Anatomy
Effect of antidiuretic hormone deficiency. Effect of antidiuretic hormone deficiency.
Male and female Lions (Panthera leo) Male and female Lions (Panthera leo)
Video: Random alignment at Metaphase I Animation

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