Organs and Organ Systems

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Across
  1. 4. system that contains the skeleton
  2. 6. system that contains the brain and spinal cord
  3. 8. body system that contains the heart and blood vessels
  4. 9. study of how the human body functions
  5. 13. group of organs working together
Down
  1. 1. system that breaks down food into nutrients
  2. 2. system that contains the muscles
  3. 3. organ that pumps blood through the body
  4. 5. study of the human body structures
  5. 7. organ that takes in oxygen from air and expels carbon dioxide from blood
  6. 10. group of tissues working together
  7. 11. filter blood and creates excretory fluid
  8. 12. the body's control center