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APPIED BIOLOGY: COPD AND STROKE1 - Essay Example

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APPLIED BIOLOGY: CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) & STROKE by (put your full name here, do not capitalize) presented to (place here the full name of your professor) (Your class/subject) (Name of school) (Date of due date)
The normal structure of the lungs is…
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APPIED BIOLOGY: COPD AND STROKE1

Download file to see previous pages... he walls of all the airways have a large surface area which is lined with tiny hairs called cilia and sticky mucus called phlegm to catch dust and germs (part of the respiratory system).
Chronic Obstructive Pulmonary Disease (COPD) is a complex illness such as chronic airways obstruction and persistent breathlessness in a wide variety of patients. This can be caused by air pollution, work hazards, and lung infections but characteristically includes those current or ex-smokers. For example Cigarette smoking alters the structure and function of the lungs causing them to increase in size and lose their elasticity (www.metrohealth.org accessed 2nd November 2009). In general, COPD is directly associated with other debilitating lung diseases, including Emphysema and Chronic Bronchitis, where the airways in the lungs are partly obstructed, narrower making it difficult to get air in and out.
In particular, Emphysema is characterized by enlarged (over-inflation) alveoli or air sacs in the lungs, distal to the terminal bronchioles which have been damaged gradually over time (The Linde Group, 2007). This over-inflation results from a breakdown of the walls of the alveoli therefore losses its elasticity , tins and small amounts of air remain in the lungs, thereby creating a poor level(decrease) of lung function and not enough oxygen into the body which leads to breathing problems (The Linde Group, 2007). Table 1.1 www.ageworks.com/.../images/lung.gif: Lung Disease (25th October 2009)
In Chronic bronchitis the primary consideration is the walls of the airways become thick inflamed (swollen) bronchi, wherby mucus (phlegm/sputum) which makes coughing occurs on a regular basis (The Linde Group, 2007). The word chronic means that is long-term with very slow changes (oxford mini-dictionary for nurse’s 2008 pp125). From a physiological perspective, the following indicators are observed: Blood flow and air flow to the ...Download file to see next pagesRead More
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