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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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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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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species
The Eastern Banjo Frog is a common frog species across eastern Australia.
24 weeks old human fetus
The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ...
The four routes of entry into the human body for hazardous materials.
Human reproduction