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Author Question: Which structure prevents the entrance of food into the trachea? A) tongue B) epiglottis C) ... (Read 59 times) |
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.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.