1. The Digestive System

2. The Digestive system
Digestion:
Mechanical and _________ breakdown of food
chemical

3. Functions Ingestion ____________ Mixing Secretion Absorption Digestion
Secretion of water, acids, buffers and enzymes
Absorption into the body
Defecation

4. Peristalsis https://www. youtube. com/watch. v=IGA-qkQsASY https://www
Moves food through _____________
Mixes food
digestive tract
Everything begins and ends with peristalsis!
Too much swelling in intestines after surgery. Some sort of bowel obstruction. Has been like that for at least 6 months

6. Accessory organs
__________
_________ glands
Teeth
Mouth
Salivary

7. Type of Teeth
Incisors
Cuspid (canine)
Bicuspids
Molars
Premolars

8. Salivary Glands
Release saliva
Breakdown food
All three are located in the mouth

9. Why does the use of meth lead to tooth decay?
Table Talk
Why does the use of meth lead to tooth decay?

10. Esophagus Upper sphincter Moves food from pharynx to esophagus
Lower sphincter
Moves from esophagus to stomach
***Two different types of muscles
Upper made up of skeletal muscle
Lower made up of smooth muscle

11. The stomach Gastric Pits contain glands to make juices Rugae
Folds in the stomach
Move food during digestion
Allow stomach to stretch
Pyloric sphincter
Moves food from stomach into duodenum (intestine)
Rugae- stretch to accommodate for large meals
Gastic pits- have glands to make gastric juice
Pyloric scphincter- holds food in stomach and allows gastric juices to do therir work (when contrtacted), when relaxed it allows food into the duedomenum

12. Stomach Lining Contains: Gastric Juices Acids that breakdown food
Mucus
Prevents stomach from digesting itself 

13. Digestive system videos
The inside scoop on your insides mary-roach.html Dr. John Kids Health Crash Course

14. Chyme
Made up of food and gastric juices

15. Pancreas Secretes insulin
Secretes various enzymes break down different things
Insulin breaks down sugars
Lipase- breaks down lipids, Amylase-breaks down carbohydrates , Trypsin- breaks down protein

16. Liver Functions Metabolizes Excretes ________ bilirubin
_________ toxins
Produces _______
bilirubin
Removes
bile
Metabolizes- proteins, lipids, carbs Remember bilirubin is a derivative of dead RBC’s
Stores vitamins and minerals, activates vitamin D, can also inactivate certain hormones (thyroid hormones, estrogens, aldosterone)

17. Structure of the liver Hepatocyte Bile canaliculi
Hepatocyte = functional cells in the liver, basically allow the liver to perform all of it’s jobs
Bile canaliculi – connect bile ducts and pass bile into bile ducts
Bile canaliculi

18. Kupffer (cup-fur) Cells
Destroy _______ matter
foreign
RBCs, WBCs, bacteria

19. Gallbladder
Stores bile
Bile digests fat

20. Table Talk
Which type of liver cell would be considered a phagocyte?

21. _______ the flow of bile bile
Gallstones
Crystallized ______
_______ the flow of bile
bile
Prevent
Prevent bile from moving out of the gallbladder. Can be as small as a pea or as big as a golf ball!!!!

23. Duodenum (do-WAD-num) Jejenum (je-JOO-num) Ileum (ill-E-yum)
Small intestine
All about ABSORTION
Sections:
Duodenum (do-WAD-num)
Jejenum (je-JOO-num)
Ileum (ill-E-yum)
**Each absorbs absorb different things using villi
Most chemical digestion takes place in the duodenum
jejunum is specialized for the absorption, by enterocytes, of small nutrient particles which have been previously digested by enzymes in the duodenum
The ileum is mainly to absorb vitamin B12 and bile salts and whatever products of digestion were not absorbed by the jejunum. The wall itself is made up of folds, each of which has many tiny finger-like projections known as villi on its surface.

24. Large Intestine All about WATER REABSORPTION Secretes mucus
The mucus contains bacteria to aid in digestion  (intestinal flora)

25. Table talk
Where are the cells that absorb dietary nutrients located?

26. defecation
Removal of _________ food
undigested

27. Types 1–2 indicate constipation, with 3 and 4 being the ideal stools (especially the latter), as they are easy to defecate while not containing any excess liquid, and 5, 6 and 7 tending towards diarrhoea.

28. Digestive System Analogy
Use 10 different organs from the digestive system and create analogies
You can use either a house or a city to compare your digestive organs to
You must include a picture of the item/thing your are comparing each organ to