Respiratory System

1234567
Across
  1. 2. Another name for the voice box.
  2. 6. Movement of air in and out of the lungs.
Down
  1. 1. The process of breathing in air into the lungs.
  2. 3. Air sacks in the lungs.
  3. 4. Prevents food from entering the trachea.
  4. 5. The muscle below the ribs and lungs.
  5. 7. Another name for the windpipe.