Circulatory Respiratory

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Across
  1. 2. what the respiratory system filters out
  2. 6. tiny blood vessels
  3. 8. is also known as the windpipe
Down
  1. 1. the process that releases energy by breaking down glucose and other food molecules
  2. 3. about the size of your fist
  3. 4. takes oxygenated blood from the left ventricle to the body
  4. 5. large flat muscle at the bottom of the chest cavity that helps with breathing
  5. 7. the chambers of the heart that either receives oxygenated or deoxygenated blood