Body Systems Review

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Across
  1. 4. Large, flat muscle at the bottom of the chest cavity that helps with breathing
  2. 6. Tiny finger-shaped structures that cover the inner surface of the small intestine where digested food is absorbed
  3. 8. The passages that direct air into the lungs
  4. 9. Liquid part of the blood
  5. 11. lower chamber of the heart
  6. 14. Allows air to pass to and from lungs (windpipe)
  7. 15. An organ that exchanges oxygen and carbon dioxide with the blood
Down
  1. 1. upper chamber of the heart
  2. 2. tiny sacs of lung tissue specialized for the movement of gases between air and blood
  3. 3. Airways in the lungs that lead from the bronchi to the alveoli.
  4. 5. A group of similar cells that perform the same function.
  5. 7. The passages that direct air into the lungs
  6. 10. Allows air to pass to and from lungs (windpipe)
  7. 12. A muscular tube that connects the mouth to the stomach.
  8. 13. a cell fragment that plays an important part in forming scabs.