1. The Digestive System

2. Function
To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

3. Noteworthy Mechanical Digestion vs. Chemical Digestion Ex: stomach
acid
Ex: chewing
Ex: saliva

4. Noteworthy: Path of food: Mouth Esophagus Stomach Small Intestine
Large Intestine
Rectum
Anus

5. Major Organs/Key Players
Esophagus: Lined with smooth (involuntary) muscle to help send food to stomach. Wave like muscle contractions are called peristalsis.

6. Major Organs/Key Players
The Small Intestine: Absorbing nutrients Villi: folds that increase surface area for absorption

7. Major Organs/Key Players
The Large Intestine: Absorbing water

8. Major Organs/Key Players
accessory organs help with digestion by releasing digestive enzymes and/or hormones.
Salivary glands
Pancreas
Liver
Gall bladder

9. Noteworthy: Labeling the parts:

10. Diseases
Diarrhea Cause: -bacteria -parasite -virus Effect: Too much water in stool; dehydration

11. Diseases
Heartburn Cause: Acid in stomach goes into esophagus Effect: Burning feeling in chest

12. Appendix Digestive System
Brain Pop
Appendix
Digestive System