Body Systems

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Across
  1. 2. Bones that protect the heart and lungs
  2. 3. Tiny blood vessels where oxygen and carbon dioxide are exchanged
  3. 5. Organ where oxygen enters the blood and carbon dioxide leaves the blood
  4. 8. Two tubes that carry urine from the kidneys to the bladder
  5. 11. Muscle that pumps blood throughout the body
  6. 12. The system responsible for breaking down food
  7. 13. Organ that filters blood to produce urine
Down
  1. 1. Long tube through which food passes from the mouth to the stomach
  2. 4. Tissues that move the skeleton
  3. 6. The organ where digestion begins
  4. 7. The windpipe that connects the throat to the lungs
  5. 9. The process of breathing in and out
  6. 10. Main artery that carries blood from the heart to the rest of the body