1. Chapter 17 Digestive System
Accessory Organs
Pancreas
Liver
Gall Bladder
17-2

2. Major Organs
17-3

3. Pancreas
17-29

4. Pancreatic Juice
pancreatic amylase – splits glycogen into disaccharides
pancreatic lipase – breaks down triglycerides
trypsin, chymotrypsin, and carboxypeptidase – digest proteins
nucleases – digest nucleic acids
bicarbonate ions – make pancreatic juice alkaline
17-30

5. Regulation of Pancreatic Secretions
acidic chyme stimulates release of secretin
secretin stimulate release of pancreatic juice
17-31

6. Liver
17-32

7. Liver Functions produces glycogen from glucose
breaks down glycogen into glucose
converts noncarbohydrates to glucose
oxidizes fatty acids
synthesizes lipoproteins, phospholipids, and cholesterol
converts carbohydrates and proteins into fats
deaminates amino acids
forms urea
synthesizes plasma proteins
converts some amino acids to other amino acids
stores glycogen, vitamins A,D, B12, iron, and blood
phagocytosis of worn out RBCs and foreign substances
removes toxins from blood
17-35

8. Composition of Bile water bile salts bile pigments cholesterol
emulsification of fats
absorption of fatty acids, cholesterol, and fat-soluble vitamins
bile pigments
cholesterol
electrolytes
17-36

9. Gallbladder
17-37

10. Regulation of Bile Release
fatty chyme entering duodenum stimulate gallbladder to release bile
17-38