Respiratory system - Introduction

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Across
  1. 3. - ability of lungs and thorax to expand
  2. 5. - accumulation of pus in lungs
  3. 10. - the normal value at the end 6mm HG
  4. 12. - process of intake of o2 and co2 out
Down
  1. 1. - volume of air remaining in lungs after forced expiration
  2. 2. - circulation of replacement of air or gas in space
  3. 4. - outer layer of pleura
  4. 6. - non respiratory function
  5. 7. - inspiration is an _____ process
  6. 8. - simple instrument used for lung volume
  7. 9. - irritation of nasal mucous membrane reflex
  8. 11. - responsible for lowering the surface tension of fluid