1. Starring: Esther Esophagus with Sammy Stomach
The Digestive System
Starring:
Esther Esophagus with Sammy Stomach

2. Nutrients
A source of nourishment

3. Calorie
The energy needed to raise the temperature of 1 gram of water 10 Celsius

4. Saliva
Moistens food for easy swallowing. Contains amylase (a enzyme) that starts to break food down in the mouth.

5. Epiglottis
Flexible flap of tissue reflexively closes over the windpipe when we swallow to prevent chocking.

6. Bolus
A mass of chewed food at the moment of swallowing.

7. Pharynx
Passageway for food and air.
5 inches/12.7 cm long

8. Esophagus
Muscular tube in your chest that forces food to your stomach

9. Peristalsis
Muscle contractions in the esophagus and intestines that move food through the digestive tract

10. Sphincter
A muscular ring that allows food to enter the stomach and closes to keep food or fluid in.
End of esophagus and stomach
Outside of anus

11. Stomach
Muscles churn and mix food with acids and enzymes to break food into smaller and more digestible pieces.

12. Enzymes
Gastric juices that help break down food into digestible pieces

13. Villi
Finger-like projections that help to absorb nutrients into the body. Found in the small intestine and stomach.

14. Appendix
May produce enzymes for digestion.

15. Liver
Produces bile that helps to absorb fat

16. Bile
An acid that help break down fats

17. Gallbladder
Stores bile

18. Chyme
What food becomes when ready to leave the stomach. (A thick liquid)

19. Pancreas
Produces insulin as well as enzymes that aid in the absorption of nutrients. Insulin causes cells in the liver, skeletal muscles, and fat tissue to take up glucose from the blood.

20. Small Intestine
Contains the Duodenum (break down of food), jejunum (absorption of digested carbs and proteins), ileum (absorb vitamin B12 )

21. Large Intestine (colon)
Area where most nutrients are absorbed. Removes water and forms solid waste that can be excreted.

22. Rectum
Where feces are stored

23. Anus
Where feces are excreted.