The Heart

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Across
  1. 2. The electrical pulse that keeps the heart beating at a normal rate
  2. 4. The doors that keep blood flowing smoothly around the heart in one direction
  3. 6. carries deoxygenated blood back directly to the heart
  4. 9. Large chambers located at the bottom of the heart
  5. 11. Divides the two ventricles
Down
  1. 1. The main tissue making up the heart
  2. 3. Where the nutrients in the blood go to the cells
  3. 5. Carries blood back to the heart
  4. 7. The main artery of the body, basically a highway for all blood
  5. 8. The upper blood pockets of the heart
  6. 10. Carries blood away from the heart