The familiar sounds of your heart are made by the heart's valves as they open and close.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.
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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Surface ocean currents
Ocean Conveyor Belt
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The radius of a semicircle is 2 kilometers. What is the semicircle's area?