Respiratory System Crossword Puzzle

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Across
  1. 4. body system that provides the body with fresh supply of oxygen for cellular respiration and also removes waste product,carbon dioxide.
  2. 5. also called voice box. Contains vocal cords for speech.
  3. 8. Muscle that contrats for you to breathe.
  4. 10. covers the glottis to prevent food entry into trachea.
  5. 11. Involuntary contractions of diaphragm.
Down
  1. 1. The posterior narrow part of oral cavity. Serves as a passage for air and food.
  2. 2. Smaller subdivisions of bronchioles clustered like grapes. Site for gas exchange.
  3. 3. Smaller branches of bronchus.
  4. 6. Windpipe leading into the lungs.
  5. 7. Two large branches of trachea leading into the lungs.
  6. 9. Internal entry and exit points for air