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Author Question: The P wave is the first wave on the ECG and represents the impulse generated by the SA node. (Read 49 times) |
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.