Heart

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Across
  1. 2. Organs where blood picks up oxygen and gets rid of carbon dioxide
  2. 3. A “door” in the heart that keeps blood moving in one direction
  3. 6. Upper chamber of the heart that receives blood
  4. 9. The strong muscle that pumps blood all around your body
  5. 10. The gas in the air that your blood carries to your cells
Down
  1. 1. The beat you can feel in your wrist or neck as your heart pumps
  2. 4. A blood vessel that carries blood away from the heart
  3. 5. A blood vessel that carries blood back to the heart
  4. 7. The type of body tissue the heart is made of
  5. 8. Lower chamber of the heart that pumps blood out