The Circulatory System

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Across
  1. 2. one side of the heart
  2. 6. small cavities in the heart
  3. 7. an artificial device for stimulating the heart muscle
  4. 8. the main artery of the body
  5. 10. muscular walled tubes in the heart
  6. 11. cava large veins carrying deoxygenated blood into the heart
  7. 12. branching blood vessels in the heart
  8. 13. large cavities in the heart
Down
  1. 1. a partition seperating the two chambers of the heart / the only organ in the cardiovascular system
  2. 3. circuit the circuit controlling blood flow to the heart
  3. 4. of or relating to the heart and blood vessels
  4. 5. one side of the heart
  5. 9. places in the heart that control the flow of blood