Heart Crossword puzzle

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Across
  1. 3. A blood vessel that carries blood to the heart from tissues and organs in the body
  2. 5. Carry oxygen rich blood throughout the body
  3. 6. Blood vessels that supply blood through out your heart
  4. 9. Main tissue of the heart
  5. 11. Prevents the heart from beating to slowly
Down
  1. 1. Open and close like doors in your heart
  2. 2. one ofthe upper chambers in the heart
  3. 4. One of the upper chambers of the heart
  4. 7. Wall that separates the chambers in your heart
  5. 8. Carry oxygen poor blood to the heart
  6. 10. Blood vessel that carries oxygen and nutrients