Gaseous exchange in insects

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  • Created by: elle1999
  • Created on: 12-02-16 12:57
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  • Gaseous exchange
    • Air enters through the spiracles.
      • Inactive- closed.
    • Spiracles open or closed by sphincters
    • Trachae
      • Carry air into the body.
      • Chitin keep them open.
      • Most gaseous exchange takes place.
      • Diffusion
    • Alternative methods
      • Mechanical ventilation- actively pumped in.
      • Air sacs which act as reserves.


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