The Digestive System. Function To break down foods into molecules small enough to be transported to...

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The Digestive System

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Transcript of The Digestive System. Function To break down foods into molecules small enough to be transported to...

Page 1: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

The Digestive System

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

FunctionTo break down foods into molecules small

enough to be transported to and absorbed by cells (for cellular respiration!).

Page 3: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

NoteworthyMechanical Digestion vs. Chemical Digestion

Ex: stomachacid

Ex: chewing

Ex: saliva

Page 4: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

Noteworthy:Path of food:1. Mouth2. Esophagus3. Stomach4. Small Intestine5. Large Intestine6. Rectum7. Anus

Page 5: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

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

Page 6: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

Major Organs/Key PlayersThe Small Intestine:Absorbing nutrients

Villi: folds that increase surface area

for absorption

Page 7: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

Major Organs/Key PlayersThe Large Intestine:Absorbing water

Page 8: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

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

Page 9: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

Noteworthy:Labeling the parts:

http://www.yakult.com.au/resources/flash/flash_digestiveDD100.html
Page 10: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

DiseasesDiarrhea

Cause: -bacteria-parasite-virus

Effect: Too much waterin stool; dehydration

Page 11: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

DiseasesHeartburn

Cause: Acid in stomach goes intoesophagusEffect: Burningfeeling inchest

Page 12: The Digestive System. Function To break down foods into molecules small enough to be transported to and absorbed by cells (for cellular respiration!).

Brain Pop

• Appendix• Digestive System


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