1. Where does the digestive system start?
Monday April 24, Day 1
1. Please have these
Items on your desk.
Agenda
Science Starter
Sheet
Where does the digestive system start?
What are 2 things that Officer Tibble talked about that surprised you?

2. Today… You will be taking notes on a lined piece of notebook paper.
You will turning this in for a grade, so take your time.
Write neatly and big enough font for everyone to read.

3. The Digestive System

4. The Digestive System
Definition: Changes food you eat into nutrients that your cells can use.
Alimentary Canal: The complete digestive system (mouth to rectum).
Digestion: Food is chemically changed so that it can be absorbed into the bloodstream.

5. Parts of the Digestive System
Teeth: Grinds your food.
Salivary Glands: Produce the saliva in your mouth.
Tongue: Helps to push food into your esophagus.

6. Parts of the Digestive System
Esophagus: The tube that carries food from the mouth to the stomach.
Epiglottis: The flap of skin that covers the trachea
Uvula: Covers the nasal passage

7. Peristalsis Waves

8. Parts of the Digestive System
Stomach: Stores all the food. (warehouse for food)
Sphincter muscles: The muscles found at each end of the stomach.
Chyme: Liquid lumpy material that is made by the stomach.

9. How food moves through the Digestive System !!
Peristalsis Waves: A ring of muscle that moves food through the digestive system.
Absorption: The process where digested food gets into the blood stream

10. Absorption in the Small Intestine
Villi: Tiny projections on the inner walls of the small intestine where absorption takes place.

11. Parts of the Digestive System
Duodenum: The tube that runs from the stomach to the small intestine.
Small Intestine: Where digestion first takes place.

12. Parts of the Digestive System
Colon
Large Intestine:
Three Parts:
Ascending Colon
Traverse Colon
Descending Colon
Appendix: Attached to the beginning of the Ascending Colon

13. Other Parts of the Digestive System
Liver: Makes bile and sends it to the gall bladder.
Bile: A substance produced by the liver and stored in the gall bladder.
Gall Bladder: Receives bile from the liver and stores the bile

14. Other Parts of the Digestive System
Pancreas: Breaks down sugars and starches.