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Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

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ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Volvulus. A volvulus results when the small intestine twists, causing an obstruction that can lead t Volvulus. A volvulus results when the small intestine twists, causing an obstruction that can lead t
Some playgrounds near streets with heavy traffic may still have high levels of lead from gasoline ... Some playgrounds near streets with heavy traffic may still have high levels of lead from gasoline ...
Glycoprotein IIb/IIIa receptor activation of platelet function. Glycoprotein IIb/IIIa receptor activation of platelet function.
A meter lead connected to a T-pin that was gently pushed along the signal wire of the TP sensor ... A meter lead connected to a T-pin that was gently pushed along the signal wire of the TP sensor ...
Some of the pathways of the auditory system that lead from one ear to the cortex. Some of the pathways of the auditory system that lead from one ear to the cortex.
Results of Mendel’s crosses using pea plants. The numbers represent the F2 plants showing a given ... Results of Mendel’s crosses using pea plants. The numbers represent the F2 plants showing a given ...
Video: Negative Feedback Regulation of Blood Pressure

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