Circulatory and Respiratory

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Across
  1. 2. The windpipe
  2. 5. The blood vessels that carry blood TO the heart
  3. 6. The part of the throat that connects the mouth and nose to the trachea
  4. 7. The blood vessels that carry blood AWAY from the heart
Down
  1. 1. The body system responsible for moving blood through the body
  2. 3. The body system responsible for breathing
  3. 4. The muscle beneath the lungs that causes them to expand and contract