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Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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Everyone has one nostril that is larger than the other.

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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

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In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

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

Cardiac Blood Flow Cardiac Blood Flow
Common errors in blood pressure assessment Common errors in blood pressure assessment
Carved Vessel Carved Vessel
Nursing Care Plan Process: Client with High Blood Lipid Levels Nursing Care Plan Process: Client with High Blood Lipid Levels
The hormone leptin is produced in fat cells, moves through the blood, and binds to receptors in the The hormone leptin is produced in fat cells, moves through the blood, and binds to receptors in the
The Type of Blood Vessel Injury Often Affects the Nature of the Hemorrhage The Type of Blood Vessel Injury Often Affects the Nature of the Hemorrhage
Video: What is Cholesterols? Introduction to Lipoproteins

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