The structure and function of the cardio-respiratory system

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1. Inspirtation is...

  • When air enters the body, rib cage moves up and out and intercostal muslces contract
  • When air leaves the body, lungs get smaller and diaphram moves up
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2. What happens when the air passes through the bronchi and bronchioles?

  • Gaseous exchange
  • Respiration
  • Fatigue

3. Capillaries are...

  • A network of microscopic blood vesells that are one cell thick
  • Small air sacs in the lungs where gaseous exchange takes place

4. The respiratory system brings oxygen in the body to produce energy and gets rid of carbon dioxide.

  • True
  • False

5. what is the cardio-respiratory system made up of?

  • the heart blood , blood vessels, blood, lungs and airways
  • muscles, joints and bones
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