NUTR 120 Lecture Notes - Lecture 6: Hepatic Portal System, Enterohepatic Circulation, Portal Vein
Document Summary
3 required readings (only testable material is lymphatic and hepatic-portal circulation) How is fat digested and absorbed: mouth stomach small intestine, 1. Triglycerides are still intact once they reach the small intestine: liver produces bile; bile is stored in gall bladder until they"re needed, eventually released in small intestine, 2. Bile acids enter small intestine and disperse fat into smaller droplets (emulsification); the smaller the better: pancreases release lipases into the si, 3. Formation of micelle (bile acid structure: micelles come into contact with mucosa (micelle has to flip inside out so that the fatty acids can come into contact with mucosal walls, 5. Cholesterol enters the body through chylomicron too: 6. Bile acids will be reabsorbed and recycled (reused by the liver enterohepatic circulation) F = soluble fibre (pulp of citrus fruit, oats, inside portion of legumes) Liver creates x gall bladder (storage) (into si) High blood cholesterol (increased risk of heart disease)
