Digestive system

1. type of digestion that involves a chemical reaction
3. stored in the gallbladder
5. structure that controls flow of materials
6. another term for chewed
8. cells secrete mucus and protect stomach against acids
11. a small rounded mass that travels through the upper GI tract
13. the stomach and small intestines mostly contain __ muscle
14. broken down food product that travels to small intestine
15. the stomach parts are pylorus, body, cardia and __
17. The ____ esophageal sphincter keeps food from flowing into the respiratory tract
19. these cells secrete hydrochloric acid
22. The innermost layer of the alimentary canal
23. protein digestion begins in the ___.
24. the first portion of the small intestine
25. folds in the small intestine

2. enzyme in saliva that begins the breakdown of food
4. wave-like contractions that move food along
7. The liver, pancreas, and gallbladder are __ organs
9. sphincter that separates small and large intestine
10. salts used to mix chyme with fat
12. fats that have gone through the digestion process are delivered through the ____ system
16. another term for swallowing
18. the portion of the small intestine most responsible for absorption
20. longitudinal folds in the stomach that allow it to expand
21. the salivary glands located by the ears