1. Diseases related to the respiratory system

2. Respiratory diseases ASTHMA It is a respiratory disease in which certain airways in the lungs become constricted because of sensitivity to certain stimuli. The narrowing of the airways reduces the efficiency of respiration which decreases the amount of oxygen reaching body cells.

3. Emphysema It´s linked to the cigarette. In people who have emphysema, the lung tissue loses its elacticity, greatly reducing the efficiency of gas exchange.

4. Lung cancer Carcinogens present in tobacco smoke trigger the growth of cancerus cells in lung tissue. More than 90% of lung cancer patients are smokers. Lung cancer has an extremely low rate of cure. Fewer than 10 % of its victims live more than 5 years after diagnosis.

5. Bronchitis Bronchitis is a respiratory disease in which the mucus membrane in the lungs' bronchial passages becomes inflamed. As the irritated membrane swells and grows thicker, it narrows or shuts off the tiny airways in the lungs, resulting in coughing spells that may be accompanied by phlegm and breathlessness.

6. Pneumonia Pneumonia usually starts when you breathe the germs into your lungs. You may be more likely to get the disease after having a cold or the flu. These illnesses make it hard for your lungs to fight infection, so it is easier to get pneumonia. Having a long-term, or chronic, disease like asthma, heart disease, cancer, or diabetes also makes you more likely to get pneumonia.

7. Influenza (the flu) Influenza (the flu) - A virus that enters your body through your nose and mouth and causes fever, headaches, muscle aches and sore throat

8. Tuberculosis TB is spread from person to person through the air. When people with lung TB cough, sneeze or spit, they propel the TB germs into the air. A person needs to inhale only a few of these germs to become infected. When a person develops active TB (disease), the symptoms (cough, fever, night sweats, weight loss etc.) may be mild for many months

9. This is the way that the respiratory system works!!! Each day we breathe about 20,000 times. All of this breathing couldn't happen without help from the respiratory system, which includes the nose, throat, voice box, windpipe, and lungs. With each breath, you take in air through your nostrils and mouth, and your lungs fill up and empty out. As air is inhaled, the mucous membranes of the nose and mouth warm and humidify the air.

10. Some extra information!! Even if the air you breathe is dirty or polluted, your respiratory system filters out foreign matter and organisms that enter through the nose and mouth. Pollutants are breathed or coughed out, destroyed by digestive juices, or eaten by macrophages, a type of blood cell that patrols the body looking for germs to destroy.

11. Tiny hairs called cilia (pronounced: sih-lee-uh) protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose with the breathed air. As air is inhaled, the cilia move back and forth, pushing any foreign matter (like dust) either toward the nostrils, where it is blown out, or toward the pharynx, where it travels through the digestive system and out with the rest of the body's waste.

12. Although some respiratory diseases like asthma or cystic fibrosis can't be prevented, you can prevent many chronic lung and respiratory illnesses by avoiding smoking, staying away from pollutants and irritants, washing your hands often to avoid infection, and getting regular medical checkups.

13. Bibliography http://health.howstuffworks.com/diseases- conditions/respiratory/diseases-of-the-respiratory- system.htmhttp://health.howstuffworks.com/diseases- conditions/respiratory/diseases-of-the-respiratory- system.htm http://kidshealth.org/teen/your_body/body_basics/lu ngs.html#http://kidshealth.org/teen/your_body/body_basics/lu ngs.html#