Human Body Unit: Respiratory System and Circulatory System

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Across
  1. 3. When you _____ the diaphragm contracts and the rib cage rises up.
  2. 4. windpipe for the respiratory system
  3. 6. voice box
  4. 8. When you ________ the rib cage lowers and the diaphragm relaxes.
  5. 9. the respiratory system removes and disposes of this gas from blood
  6. 12. the first main organ of the respiratory system
  7. 13. the respiratory system takes this gas up from air and supplies it to blood
  8. 15. Fine tubes that allow passage of air.
  9. 16. bring blood to the heart
Down
  1. 1. air sacs at the end of bronchioles where gas exchange takes place.
  2. 2. this is the main function of the circulatory system.
  3. 5. we have 3 _______ for blood type
  4. 7. (throat) is a sensor for the respiratory and digestive systems
  5. 10. move blood way from Heart
  6. 11. two pipes that break from the trachea and connect to the lungs
  7. 14. transports material to every cell of the body, including oxygen