The Respiratory System

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Across
  1. 3. the process by which lungs provide oxygen to body tissues and dispose of carbon dioxide
  2. 4. voice box
  3. 8. The muscle that pumps blood received from veins into arteries throughout the body
  4. 9. any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange
  5. 12. the network of organs and tissues that help you breathe
  6. 15. large organs that occupy almost the entire thoracic cavity
  7. 16. the space behind the nose
Down
  1. 1. the process by which air flows into the lungs
  2. 2. infection of the lungs
  3. 5. passageway that transport food, liquids, and air
  4. 6. external opening for breathing
  5. 7. dome shaped muscle that sits between the thoracic and abdominal cavity
  6. 10. the windpipe
  7. 11. life-supporting component of the air
  8. 13. flap between mouth and larynx;keeps food from entering into trachea
  9. 14. any of the major air passages of the lungs which diverge from the windpipe