Body systems

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Across
  1. 3. the act or process of breathing
  2. 8. organs that are important for digesting food and liquids.
  3. 9. gas exchange
  4. 10. A tubular muscle forces food down
Down
  1. 1. the scientific name for a human
  2. 2. the function of the heart pumping blood around the body
  3. 4. a powerful muscular pump
  4. 5. takes oxygenated blood from the heart to the muscles.
  5. 6. a pair of organs that supply oxygen and remove carbon-dioxide.
  6. 7. the largest artery in the body