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The Respiratory System

The Respiratory System. Did you know?. How long can you hold your breath for? The world record for holding breath is 19 minutes and 21 seconds. (this is with inhaling pure oxygen beforehand). Without inhaling before hand is 8 minutes and 58 seconds. How did he do this? Youtube Clip.

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The Respiratory System

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  1. The Respiratory System

  2. Did you know? • How long can you hold your breath for? • The world record for holding breath is 19 minutes and 21 seconds. (this is with inhaling pure oxygen beforehand). Without inhaling before hand is 8 minutes and 58 seconds. • How did he do this? Youtube Clip

  3. What is the role of the respiratory system? • It is where the blood gets it’s oxygen from and where carbon dioxide is taken away. • Animation of Respiratory System (eg. Brainpop)

  4. Label your diagram

  5. Where does it all start? • When air comes in your nose it gets filtered by tiny hairs (that have mucus on them), the air is moistened and warmed. • Air can also enter through your mouth but here it is not moistened or filtered.

  6. Where are We? Air enters through the nose or mouth and then enters the pharynx MB

  7. Your pharynx gathers air and then the air is passed down your trachea (windpipe) • Your trachea is a pipe, but is kept open by cartilage rings (similar to bone). It carries air from your throat to your lungs. • If you feel your neck you might be able to feel these rings of cartilage.

  8. The trachea then breaks into two bronchi tubes. • These tubes then split up into tree like branches called bronchiole. • These tubes get smaller and smaller until they are called alveoli (air sacs) this is where the blood exchanges with the air.

  9. Alveoli and Capillaries Alveoli are covered in blood capillaries.

  10. Parts of the Respiratory System

  11. Respiration Rate • You breathe between 12 and 24 times per minute. • This rate varies with age, physical activity and your mood.

  12. Lung capacity • How do we measure Lung capacity?

  13. The Diaphragm

  14. So what happens to you ribs when • you inhale? • you exhale?

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