Crossword

3. System that brings in oxygen needed for cellular respiration and removes excess carbon dioxide from the body.
8. Are anchored in the bones of the jaw, are protected by a coating of mineralized enamel and cut into and tear the food.
9. Process in which a stimulus produces a response that opposes the original stimulus; also called negative feedback.
12. System that transports oxygen, nutrients, fights infection and helps to regulate body temperature.
14. Type of tissue that makes the movements of the body possible.
18. Group of organs that perform closely related functions.
19. The bolus passes through this tube form the throat.
21. Process where some materials that cannot be absorbed travel through the large intestine and are eliminated from the body as feces.
24. Mixture of enzymes and partially-digested food.
25. Helps to moisten the food and make it easier to chew.

1. Contractions of smooth muscles that provide the force that moves food through the esophagus toward the stomach.
2. Constant internal physical and chemical conditions that organisms maintain despite changes in internal and external environments.
4. System that eliminates waste products from the body.
5. System that produces gametes, nurtures and protects developing embryo.
6. System that breaks down food, absorbs nutrients and eliminates wastes.
7. fingerlike projection in the small intestine that aids in the absorption of nutrient molecules.
10. Type of digestion where enzymes breakdown food into small molecules that the body can use.
11. Intestine where almost all the digestive enzymes enter the intestine.
13. Enzyme contained in the saliva that acts on starsh.
15. System that recognizes and coordinates the body’s response to changes in its internal and external environments.
16. Gets its name due the diameter, removes water from the undigested material that is left.
17. System that works with skeletal system to produce movement
20. Enzyme that breaks down proteins into smaller polypeptide fragments.
22. Is technically part of the digestive system because it produces bile, which aids in the digestion of fats.
23. Type of digestion that is the physical breakdown of large pieces of food into smaller pieces.