The crossowrd

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Across
  1. 4. what chemical do you release when stressed
  2. 5. the system where your lungs are
  3. 6. the system where your food goes
Down
  1. 1. The structure of your body relies on this
  2. 2. is the system that controls the glands/hormones
  3. 3. the roads of your body to carry information