The Heart

1234567891011
Across
  1. 5. A thick walled blood vessel with oxygenated blood
  2. 6. Smaller upper heart chamber
  3. 7. blood cells Carry oxygen around the body.
  4. 8. Smallest kind of blood vessels
  5. 11. Gas we breathe in
Down
  1. 1. Word used about lungs
  2. 2. They separate heart chambers
  3. 3. Carry deoxygenated blood to lungs
  4. 4. Large heart chamber
  5. 9. Where red blood cells absorb oxygen
  6. 10. Biggest artery in the body