Asthm Common Respiratory Disease That Affects The Bronchioles Airway

994 Words Apr 6th, 2015 4 Pages
Asthma is a common respiratory disease that affects the bronchioles airway. In other words, it is characterized by the airway inflammation and the constriction of airway. Basically, asthma can be classified into two categories which are extrinsic asthma and intrinsic asthma. Extrinsic asthma can be categorized as allergic asthma that caused by exposure to the antigen such as dust miles and pollen. Intrinsic asthma is a non-allergic asthma which usually caused by in contact with chemicals substances, inhale dry or cold air, violent exercising and coughing. People who have severe asthma, probably not able to go to school, work or carry out any outdoor activities. This essay will begin by looking at the respiratory system and how normal system is affected by asthma. Then, how salbutamol relieves the asthma’s symptoms will be shown. Figure1

In normal breathing, air is inhaled into the body via nose or mouth and moving down into the trachea, bronchi, bronchioles and alveolus where gaseous exchange take place (Hadassah Medical Center, n.d. ). A healthy bronchioles has relaxed smooth muscle layer, a thin layer of mucus which lines on the airways and wider lumen of airway so that more air can be inhaled into the lungs as shown in Figure1 (Kenny, 2014). The nose will filter the dust particles or allergens, prevent them from entering into the lungs. These allergens will be trapped by a thin layer of mucus and the cilia will sweep mucus upwards and out of the bronchiole and trachea.…
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