Heart

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Across
  1. 2. Transports oxygen-depleted blood to the lungs to exchange CO2 for O2
  2. 5. pumping blood throughout the body
  3. 6. Carries carbon dioxide-rich blood back to the heart
Down
  1. 1. Transports oxygen-rich blood to the heart to redistribute to the rest of the body
  2. 3. Carries oxygen-rich blood and nutrients away from the heart to the rest of the body
  3. 4. Exchanges gases to remove carbon dioxide and add oxygen to blood