Chapter 16 Crossword Puzzle

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Across
  1. 2. the passage from the mouth to the larynx and esophagus
  2. 4. the area of the throat that contains the vocal cords and produces vocal sounds
  3. 5. the exchange of oxygen and carbon dioxide between living cells and their environment
  4. 6. the force that blood exerts on the walls of the arteries
  5. 7. tiny air sacs of the lungs where oxygen and carbon dioxide are exchanged
  6. 11. a collection of organs that transport blood throughout body
  7. 12. the fluid that carries gases, nutrients, and wastes through the body
  8. 14. two tubes connecting lungs and trachea
Down
  1. 1. a collection of organs whose primary function is to take oxygen and expel carbon dioxide
  2. 2. the flow of blood from the heart to the lungs and back to the heart
  3. 3. the flow of blood from the heart to all parts of the body and back to the heart
  4. 8. the tube connecting larynx and lungs
  5. 9. a blood vessel that carries blood away from the heart to the body's organs
  6. 10. a tiny blood vessel that allows an exchange between blood and cells in other tissue
  7. 13. a vessel that carries blood to the heart