digestive system

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Across
  1. 3. system that produce voluntary movement
  2. 4. enzyme that contain the saliva
  3. 6. system THAT BREAKS DOWN FOOD, ABSORB NUTRIENTS AND ELIMINATE WASTES
  4. 7. breaking food into smaller molecules.
  5. 8. enzyme that is best in acidic condition
  6. 10. is WHERE THE DIGESTIVE SYSTEM STARTS
  7. 12. during swallowing, this lowers over the opening of the trachea to prevent food/liquid from entering the respiratory tract
  8. 13. system that brings oxygen needed for cellular respiration
Down
  1. 1. what are the blood capillaries surrounding villiabsorbing into the bloodstream
  2. 2. involuntary muscular contraction that squeezes food down the oesophagus
  3. 5. tube that is connected to the stomach (food passes through it )
  4. 9. Removal of undigested food
  5. 11. how many stages of digestion are there?
  6. 14. is A LARGE MUSCULAR SAC THAT DO PHYSICAL AND CHEMICAL REACTIONS TO THE FOOD