The document summarizes the key functions and components of the respiratory system. It begins with an overview of how air moves from the nose or mouth through the trachea and bronchi into the lungs. It then provides 10 interesting facts about respiration and the lungs. The document concludes with sections on lung cancer symptoms, prevention strategies, and diagrams of the trachea and lungs.

1. R e s p i r a t o r y s y s t e m By Wheturangi Derby Year 9, Paeroa College New Zealand

3. First the body breathes in the air which is sucked through the nose or mouth and down through the trachea (windpipe). The trachea is a pipe shaped by rings of cartilage. It divides into two tubes called bronchi. These carry air into each lung. respiratory uses

5. 6,We lose about a half a litre of water a day from breathing. 7,The surface area of people’s lungs is as big as a tennis court. 8.The capillaries in the lungs would extend 1,600 kilometres if placed end to end 9.Inside the lung, the tubes divide into smaller and smaller tubes called bronchioles. 10.At the end of each of these tubes are small air balloons called alveoli.

7. Were you focusing 3. What happens to air when passed through the hairs in your nose? A] It gets warmed up and cleaned B] It gets cooled down C] None of the above 4. How many times does someone breathe a minute while they are asleep? A] 23-30 B] 18-20 C] 16-17 D] 12-15

8. Were you paying attention ? 5. What is the highest speed recorded for a sneeze travelling? A] 120km/h B] 145km/h C] 150km/h D] 165km/h 6. Around about how many litres of water do we lose a day from breathing? A] 3/4 litres B] ½ litres C] 2 litres D] 5 litres

9. 7. How big is the area of someone’s lung? A] As big as a netball court B] As big as a rugby field C] As big as a tennis court 8. How long would the capillaries in the lungs extend to? A] 1,200 kilometres B] 1,400 kilometres C] 1,600 kilometres Almost there……………

10. 9. The lungs have tubes that divide into smaller and smaller tubes called what? A] Capillaries B] Lung tubes C] Bronchioles 10. At the end of these tubes there are small air balloons called what? A] Lung balloons B] Bronchioles C] Alveoli Last few questions ……

11. The trachea…… The Trachea The Trachea also known as the wind pipe is used to pass air that is breathed in through the nose or mouth into the lungs. The diagram below shows the Trachea.

12. The Lungs……. The lungs are two vital organs in the respiratory system Air is breathed in and the trachea pumps the oxygen that goes into the lungs and carbon dioxide goes out. The lungs are also shown on the diagram below

13. Lung cancer Symptoms of lung cancer are varied depending upon where and how widespread the tumour is. Warning signs of lung cancer are not always present or easy to identify. A person with lung cancer may have the following kinds of symptoms 1.Swelling in the throat. 2.Change from your normal cough. 3.A hoarse voice. 4.You loss weight easily. 5.You loose your hunger for food. 6.You may notice blood in your phlegm. 7.You get sore when breathing or coughing. And much more.

14. How to prevent lung cancer You should go in for checks every now and then if it is common in your family or if you have any of the symptoms of it. Another way to prevent it is not to smoke or be around smokers. If you have been diagnosed with lung cancer, be sure to follow your doctor's instructions about calling when you have problems, new symptoms, or symptoms that get worse.

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