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Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Extracellular digestion in a gastrovascular cavity. Extracellular digestion in a gastrovascular cavity.
Imaginary Thoracic Lines, Posterior View Imaginary Thoracic Lines, Posterior View
Renal transplant. A transplanted kidney is placed within the pelvic cavity below the location of the Renal transplant. A transplanted kidney is placed within the pelvic cavity below the location of the
Oral cavity and pharynx Oral cavity and pharynx
thoracic 19 thoracic 19
Ciliated protozoan Tetrahymena with buccal cavity visible. Ciliated protozoan Tetrahymena with buccal cavity visible.
Video: Krebs cycle : Formation of acetyl coenzyme A and Electron transport chain

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