Across
- 3. Enzyme that breaks down proteins into smaller polypeptide fragments.
- 7. Gets its name due the diameter, removes water from the undigested material that is left.
- 8. System that works with skeletal system to produce movement
- 12. Contractions of smooth muscles that provide the force that moves food through the esophagus toward the stomach.
- 16. Are anchored in the bones of the jaw, are protected by a coating of mineralized enamel and cut into and tear the food.
- 17. The bolus passes through this tube form the throat.
- 19. Type of digestion that is the physical breakdown of large pieces of food into smaller pieces.
- 20. Group of organs that perform closely related functions.
- 21. Process in which a stimulus produces a response that opposes the original stimulus; also called negative feedback.
- 25. Intestine where almost all the digestive enzymes enter the intestine.
Down
- 1. fingerlike projection in the small intestine that aids in the absorption of nutrient molecules.
- 2. System that recognizes and coordinates the body’s response to changes in its internal and external environments.
- 4. Type of digestion where enzymes breakdown food into small molecules that the body can use.
- 5. Mixture of enzymes and partially-digested food.
- 6. Enzyme contained in the saliva that acts on starsh.
- 9. System that produces gametes, nurtures and protects developing embryo.
- 10. Type of tissue that makes the movements of the body possible.
- 11. Constant internal physical and chemical conditions that organisms maintain despite changes in internal and external environments.
- 13. Helps to moisten the food and make it easier to chew.
- 14. Is technically part of the digestive system because it produces bile, which aids in the digestion of fats.
- 15. System that brings in oxygen needed for cellular respiration and removes excess carbon dioxide from the body.
- 18. System that eliminates waste products from the body.
- 22. Process where some materials that cannot be absorbed travel through the large intestine and are eliminated from the body as feces.
- 23. System that breaks down food, absorbs nutrients and eliminates wastes.
- 24. System that transports oxygen, nutrients, fights infection and helps to regulate body temperature.