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Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

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Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

The female reproductive system, sagittal view showing organs of the system in relation to the urinar The female reproductive system, sagittal view showing organs of the system in relation to the urinar
The Uranian ring system The Uranian ring system
TEN RULES OF PERFORMANCE IN A REDESIGNED HEALTH CARE SYSTEM TEN RULES OF PERFORMANCE IN A REDESIGNED HEALTH CARE SYSTEM
Procedures and Diagnostic Tests Related to the Male Reproductive System Procedures and Diagnostic Tests Related to the Male Reproductive System
The limbic system is located within the higher brain, or cerebrum. The limbic system is located within the higher brain, or cerebrum.
Incomplete Digestive System Incomplete Digestive System
Video: Central Nervous System Animation

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