Respiratory System

123456789
Across
  1. 5. air movement from the atmosphere into the lungs
  2. 7. the process in which the body takes in oxygen and removes carbon dioxide
  3. 8. a hollow tube strengthened and open by rings of cartilage
  4. 9. another name for the voice box
Down
  1. 1. tiny vessels carrying blood
  2. 2. clusters of tiny air sacs
  3. 3. another name for throat
  4. 4. air movement from the lungs to the atmosphere
  5. 6. the process by which air moves in and out of the lungs
  6. 9. to bag-like organs one either side of the heart