MY GOOD PUZZLE

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Across
  1. 2. Airways in the lungs that lead from the bronchi to the alveoli.
  2. 4. Tiny finger-shaped structures that cover the inner surface of the small intestine where digested food is absorbed
  3. 6. System. System that removes cellular waste from your body and controls water balance.
  4. 7. Found in the kidney, little filter that blood goes through.
  5. 8. lower chamber of the heart
  6. 10. Blood Cell. Blood cells that carry oxygen from the lungs to the body cells.
  7. 12. Large, flat muscle at the bottom of the chest cavity that helps with breathing
  8. 13. A blood vessel that carries blood away from the heart.
  9. 14. The passages that direct air into the lungs
  10. 15. Allows air to pass to and from lungs (windpipe)
Down
  1. 1. A group of similar cells that perform the same function.
  2. 3. smallest blood vessel; connects arteries and veins - is where stuff is being delivered and picked-up.
  3. 5. System. System that brings oxygen into the body. Gets rid of carbon dioxide.
  4. 9. A muscular tube that connects the mouth to the stomach.
  5. 11. Airways in the lungs that lead from the bronchi to the alveoli.