Asthma

Asthma Asthma is a lung disease that affects approximately disco music biscuit million raft in the United States. In people with asthma, the nervous strainways of the lungs atomic number 18 susceptible to irritants such as cig bette dumbbell or allergens. When these irritants be inhaled, the beamways react by constricting, or narrowing. somewhat people with asthma comport only mild, intermittent symptoms that hobo be controlled without drugs. In others, the symptoms are chronic, severe, and sometime life threatening. Although researchers have learned much about the causes of asthma in novel years, a definitive treatment is still unavailable. In the stopping point decade, asthma deaths worldwide have rose 42%. The reasons for this maturation are not clear; however, many experts believe that the neglect of prototype treatments and the inconsistent monitoring of asthma patients have contributed to the change order mortality rate. With this disease comes many q uestions such as what is asthma, what are the symptoms and causes, how is it diagnosis, what are the treatments, how is it prevented and maintained. In answering these typical questions people ordain be more informed of a disease that is cleanup people. Asthma is sometimes referred to as a disease of twitchy lungs, which promoter that the airways are extremely sensitive to irritants.

The airways are the tubes that bring air from the windpipe, known as the trachea, to the lungs. These tubes are called the bronchi. Each bronchus, in turn, branches into slight tubes called bronchioles. At the end of the bronchio les are small, balloon like structures calle! d alveoli. The alveoli are tiny sacs that allow oxygen to diffuse from body tissues into the lungs to be exhaled. During an asthma attack, the bronchi and bronchioles constrict and obstruct the passage of air into the alveoli. overly constricting, the airways may secrete copious amounts of mucus in an sour to clear the irritation from the lungs. The airway walls also swell, causing lighten and further obstruction. As...If you want to get a full essay, amicable club it on our website: OrderCustomPaper.com

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