• Respiratory System
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  • Where are the lungs located?
    Within the thoracic cavity.
  • Respiration is the movement of ....
    air in and out of the lungs. (Pass oxygen into the circulatory system (to produce ATP). remove carbon dioxide from the circulatory system.)
  • The main muscles involved in breathing are... (3)
    Diaphragm, internal and external intercostal muscles
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