The Heart

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Across
  1. 1. Controls heartbeat
  2. 5. Pumps blood to the lungs
  3. 8. The main wall of the heart
  4. 10. Allows blood to go from the atrium to the ventricle
  5. 11. Tiny vessels that carry blood to body cells
Down
  1. 2. Takes blood from the right ventricle to the lungs
  2. 3. A collecting chamber for blood returning from circulating the body
  3. 4. Carries oxygen-poor blood to the right atrium
  4. 6. Takes blood from the lungs to the left atrium
  5. 7. Separates the heart into the left and right sides
  6. 9. A pipeline that carries blood away from the heart