Mouth/Esophagus

3. you should avoid this for optimal dental hygiene- it is also bad for your lungs
5. the hollow tube inside the neck that starts behind the nose and ends at the top of the trachea and esophagus- scientific name is the throat
8. mechanical breakdown of food- for example: chewing
9. an enzyme produced by salivary glands
11. the involuntary contraction and relaxation of longitudinal and circular muscles throughout the digestive tract
12. a condition in which the lining of the esophagus becomes swollen, inflamed, or irritated
16. average pH of saliva
17. has proteins and minerals that protect tooth enamel and prevent tooth decay and gum disease
18. there are 32 of these in your mouth
19. something that you do twice or more a day that ensures dental hygiene- most people do not do this though
20. you should avoid these types of foods for the optimal dental hygiene

1. the muscular tube that carries food and liquids from your mouth to the stomach- it is about 8 inches long
2. process where proteins, fats and carbohydrates are broken down so that they can be used in the body
4. the moist pink tissue that lines the esophagus
6. the flap that covers the trachea during swallowing so that food does not enter the lungs
7. similar to saliva this substance cleans your teeth and helps to wash away food debris, unwanted sugar, and acid produced by bacteria in your mouth
10. process of the movement of substances from the mouth through the pharynx and esophagus to the stomach
13. something that you do twice or more a day that ensures dental hygiene
14. the normal pH of the esophagus
15. someone that you should see regularly who cleans your teeth