breathing system and gas exchange

• respiration=glucose + oxygen -> carbon dioxide
• gas exchange in lungs

  • the lungs are found in the thorax
  • the diaphragm separates the lungs from the digestive organs called the abdomen

  
• breathing order

  • nose
  • trachea
  • bronchus
  • bronchiole
  • alveoli
• between the ribs lie intercostal muscles