Human System

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Across
  1. 5. This digestive juice is produced in the mouth.
  2. 6. The skeleton is an organ _______ in the human body.
  3. 8. The ______ system works with the skeletal system to enable you to lift your arm.
  4. 10. Digestion ends in the small _______.
Down
  1. 1. The brain, heart and lungs are _____ of the human body.
  2. 2. The _____ is part of the circulatory system.
  3. 3. The ________ system enables the exchange of gases between the body and its surroundings.
  4. 4. ________ is the breaking down of food into simple forms so that it can be absorbed by the body.
  5. 7. No digestive juices are produced here.
  6. 9. The _______are part of he respiratory system.