1. Word Bank Anus Esophagus Gallbladder Large Intestine Liver Mouth
Pancreas
Salivary Glands
Rectum
Small Intestines
Stomach
Sponge #8 1 11 2 10 3 9 4 5 8 6 7

2. Salivary glands
mouth
esophagus
liver
stomach
gallbladder
pancreas
Small intestines
Large intestines
rectum
anus

3. KEY CONCEPT The digestive system breaks down food into simpler molecules.

4. In 1822, Alexis St. Martin was shot in the stomach and treated by William Beaumont, an army surgeon
The bullet had left a small hole in his stomach
Beaumont persuaded St. Martin to let him observe the digestive process by tying foods to string, putting them into the stomach, and observing how the food was digested

5. The digestive system is a collection of organs that breaks down food into energy that can be used in cells
mouth
esophagus
liver
gallbladder
large intestine
small intestine
rectum/anus

7. After digestion is complete, nutrients are absorbed and transported to all cells.
Undigested materials are eliminated as liquid and solid wastes (urine/feces)
mouth
esophagus
liver
gallbladder
large intestine
small intestine
rectum/anus

8. Digestion begins in the mouth and continues in the stomach.
Mechanical (teeth) and chemical (saliva) digestion break down food.
Peristalsis moves food through the organs.
esophagus
muscles contract
muscles relax
food
stomach

9. Digestion of carbohydrates begins in the mouth.
Digestion of proteins occurs in the stomach.
Digestion of fats and sugars occur in the small intestine.

10. Most digestion takes place in the small intestines.
The pancreas, liver, and gallbladder aid in digestion.
pancreas helps digest fat and protein
bile from the liver/gallbladder helps digest fats
liver
stomach
bile
chyme
bile
enzymes
gallbladder
pancreas
duodenum

11. Sponge # 9
1. What is the main function of the digestive system? 2. Describe how the mouth uses both mechanical and chemical digestion. 3. What three organs aide the small intestine with digestion? 4. If you ate a meal of spaghetti and meatballs, where would digestion of the pasta begin? The meat?

12. What is the main function of the digestive system?
To break down food into smaller molecules for the body to absorb and use for energy.
Describe how the mouth uses both mechanical and chemical digestion.
Mechanical: teeth chew food
Chemical: enzymes in saliva break down starches
What three organs aide the small intestine with digestion?
Gallbladder, liver, and pancreas
If you ate a meal of spaghetti and meatballs, where would digestion of the pasta begin? The meat?
Spaghetti: in mouth- starches
Meatballs: in stomach- proteins

13. Circulatory and Digestive System Posters
Title on top
Describe the FUNCTION (job) of your organ
Draw a picture
Answer all questions on prompt
Color
Use Big font