1. Secretin- a hormone that stimulates basic pancreatic juices
Gastrin-a hormone that increases the production of digestive juices
Cholecystokinin- a hormone that stimulates digestive pancreatic juices and bile release
Pepsin-an enzyme that digests proteins
Amylase-an enzyme that digests carbohydrates
Lipase- an enzyme that digests lipids

2. Digestive System
Does anyone read this?

3. Outline Week One Week Two Diagrams & layers of digestive system
Tongue, palate, teeth & salivary glands
Pharynx, esophagus, stomach
Pancreas, liver, gallbladder & intestines
Week Two
Diseases and treatments
Clinical Rounds
Review
TEST (MARCH 1st!)

4. Gallbladder, Liver and Pancreas
No food goes through these
Secretions  ducts  S.I.
Food that enters the small intestine from the stomach is called chyme (an acidic paste)

5. Pancreas Makes digestive juices for organic compounds
Lipase, cholecystokinin & nuclease
Secretin stimulates basic solution to reduce pH of chyme

6. Liver Versatile organ! Tiny units called hepatic lobules Secretes bile
 hepatic duct
Lipid digestion
Other roles: creates phospholipids, cholesterol, filters blood, turns carbs to fats, makes parts of blood, stores iron/vitamins, filters toxins

7. Gallbladder Overflow storage site for bile
Release of bile controlled by cholecystokinin

8. The intestines

9. Peristalsis
Rhythmic movement of muscles that moves food through the large and small intestines

10. Small Intestine Chyme here Three parts
Duodenum
Ilium
Jejunum
Coated with villi to increase SA

11. Small Intestine’s Role
Finish digestion
Absorb nutrients
Move food remains to large intestines
Secrete watery fluid to help absorb digested nutrients
Note: If food is rushed through small intestines, there will be low nutrient absorption, increased defecations & diarrhea

12. Large Intestine Absorb water & electrolytes Three parts Cecum Colon
Rectum

13. Magic School Bus!
Name as many components of their trip that you recognize as part of the digestive unit
These can be facts you thought of, names or functions of structures, etc.

14. Activity
Trace the path of a piece of food through the digestive system. List the sites that you see (in order) and what is occurring there.

15. Flashcards
Hormones: gastrin, cholecystokin, secretin (other side is what organs they effect and what it makes they secrete).
Enzymes: Lipase, amylase, nuclease, bile salts, pepsin