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There are 20 feet of blood vessels in each square inch of human skin.

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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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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Vessels composed of vessel elements in xylem tissue. Vessels composed of vessel elements in xylem tissue.
The Caribou Monument at the World War I Beaumont-Hamel Newfoundland Memorial The Caribou Monument at the World War I Beaumont-Hamel Newfoundland Memorial
Teres Major Teres Major
Oil sands reserve in the world Oil sands reserve in the world
Permian world Permian world
Major Structures of the Eye Major Structures of the Eye
Video: Blood Flow through the Human Heart

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