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