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Respiratory system

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Jeremy Smith

on 5 May 2010

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Transcript of Respiratory system

Respiratory system The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. The lungs are the main organs of the respiratory system. The trachea is sometimes called the windpipe. The trachea filters the air we breathe and branches into the bronchi. The bronchi are two air tubes that branch off of the trachea and carry air directly into the lungs. Breathing starts with a dome-shaped muscle at the bottom of the lungs called the diaphragm. http://hes.ucfsd.org/gclaypo/repiratorysys.html Diseases that affect the Respiratory system. Asthma Cystic fibrosis Lung cancer An asthma attack involves muscle contractions of the airways, which reduce airflow and cause shortness of breath, wheezing and coughing. Irritants such as dust, pollens, animal hair or cigarette smoke, as well as exercise can trigger asthma.While asthma can’t be cured, mild symptoms can be controlled by use of prescribed inhaled medication. Serious or severe asthma attacks require professional medical attention, but with ongoing treatment, most asthmatics manage the disease and live normal, long lives. Cystic fibrosis is an inherited disorder caused by a defective gene. The disease causes mucous secretions to become thick, which interferes with the normal function of the airways. Pancreas and liver secretions can also be affected, causing ducts leading to the digestive tract to become blocked, thus not able to absorb sufficient nutrients. Cystic fibrosis is usually evident in infancy or childhood and there is no cure. Symptoms can be treated with breathing and dietary treatments, but life expectancy is short for sufferers. Lung cancers usually develop in the epithelium of airways, and the first signs of it are usually secondary growths in bones, liver or the brain.

Treatment for lung cancer may be surgery to remove the cancer, chemotherapy and radiation therapy. 1. Do not smoke cigarettes.

2. Exercise daily to the point of being out of breath.

3. Try holding your breath as long as possible to expand your lungs Ways to keep a healthy Respiratory system. You don't get sick with a cold because you're out in freezing air, but because you tend to be inside more and around others. Fun facts Human lungs have approximately 1500 miles of airways. The right lung in humans is larger than the left lung in order to
accommodate the heart. People yawn because the brain detects low levels of oxygen in the lungs and triggers the response so the body will intake a large amount of oxygen. Guinness World Records lists Charles Osborne from Anthon, Iowa as a record-holder for hiccupping. He hiccupped for 68 years. When an irritant such as dust particles come in contact with mucous membranes in the nose, the body gets rid of them by triggering a sneeze. Main parts of the Respiratory system The lungs, airways, diaphragm, windpipe, throat, mouth, and nasal passages are all part of the respiratory system.
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