Heart

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Across
  1. 1. system/the body system that moves blood around the body
  2. 2. pipe that allows blood to flow in only one direction
  3. 4. two lower chambers of the heart
  4. 5. vessels that carry blood away from the heart
  5. 7. vessels that carry blue blood back to the heart
  6. 8. muscular organ that pumps blood through the body
Down
  1. 1. blood vessels that connect arteries to venues
  2. 3. blood cells/blood cells that carry oxygen from the lungs to the body and take away carbon dioxide to the lungs again
  3. 5. two upper chambers of the heart
  4. 6. transport substance to and from all parts of the body