games

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Across
  1. 2. lower chambers of heart
  2. 6. bloods that are carried away from the heart
  3. 7. wall of tissue that separates right and left part of heart
Down
  1. 1. middle layer of heart wall
  2. 3. largest artery
  3. 4. muscular organ that pumps blood to all parts of body
  4. 5. flaps/leaflets that prevent backward flow of blood