human heart

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Across
  1. 2. Heartbeats
  2. 3. The most important organ in the body
  3. 5. What pumps the heart?
  4. 6. How many valves are in the heart?
  5. 7. The largest vessel?
  6. 8. Where is the blue blood flowing?
  7. 9. what is the heart made of?
  8. 10. What color is the blood?
Down
  1. 1. Vessels-threads
  2. 4. Rhythm disturbance
  3. 8. Doors of the heart