Circulatory system

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Across
  1. 2. Through two upper chambers of the heart which lets the blood move from the body to the heart.
  2. 3. tiny air sacks at the end of ronchioles
  3. 5. the smaller branches bronchi turn into
  4. 6. Is one of the two large chambers that collect and expell blood.
  5. 7. the liquid blood floats in
  6. 9. The system which blood goes to and fro.
  7. 11. The largest artery in the body
  8. 12. joins veins to Capillaries
Down
  1. 1. vessels that unoxynated blood flows in.
  2. 2. The smallest arteries
  3. 4. Main muscle for pumping blood
  4. 5. vessels that oxynated blood flows in.
  5. 8. the two branches of the lungs
  6. 9. are the smallest of a bodies blood vessels
  7. 10. blood vessels that carry the blood away from the heart