Body Systems

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Across
  1. 4. A blood vessel that carries blood back to the heart
  2. 7. Blood cells that carry oxygen from the lungs to the body cells.
  3. 8. Upper chamber of the heart
  4. 9. The passages that direct air into the lungs
  5. 10. Smallest blood vessel; connects arteries and veins- is where stuff is being delivered and picked-up.
  6. 12. A cell fragment that plays an important part in forming scabs.
  7. 13. Airways in the lungs that lead from the bronchi to the alveoli.
Down
  1. 1. A blood cell that fights disease
  2. 2. tiny sacs of lung tissue specialized for the movement of gases between air and blood
  3. 3. Lower chamber of the heart
  4. 5. Allows air to pass to and from lungs (windpipe)
  5. 6. A blood vessel that carries blood away from the heart.
  6. 11. Large, flat muscle at the bottom of the chest cavity that helps with breathing