Respiratory system

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Across
  1. 2. Each respiratory bronchiole divides into
  2. 4. minor lipid of surfactant
  3. 8. respiratory unit starts from
  4. 11. interpleural space or pleural cavity is narrow space between two layers of
  5. 12. difference between alveolar pressure and interlural pressure is called
  6. 13. Bronchiodilation contains which type of receptors
  7. 14. how many treasury bronchi are there in right bronchi
Down
  1. 1. which portion of surfactant is directed towards the alveolar air
  2. 3. air leave the lungs in which phase of respiration
  3. 5. which fluid prevent friction between 2 layers of plural
  4. 6. which substance is secreted in alveolar epithelium
  5. 7. alveolar epithelium consists of which type of cells
  6. 9. diaphragm is supplied by which nerve
  7. 10. during inspiration the diaphragm is contracted or relaxed