NUSCTX 103 Lecture Notes - Lecture 1: Salivary Gland, Gastric Glands, Mouth
6 Jan 2020
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Study guide for lecture 1: digestive physiology: name the compartments of the gastrointestinal tract (6) and accessory organs. Oral cavity- salivary glands, esophagus, stomach, small intestine- liver/pancreas/gallbladder, large intestine, anus: for each organ ( not esophagus or anus) , know anatomical specializations & functions. Small intestine (see digestive enzymes listed below chart**) Vitamins (no digestive enzymes secreted, just bacterial fermentation) [fiber aka indigestible] carbs > gases [co2 & methane] & short chain. Pancreas (exocrine- not travel through blood) (endocrine: travel in blood, insulin & glucagon) Store bile (w/ bile salts that allow absorption of lipid-soluble constituents ) Make & secrete pancreatic juice (water, salts, bicarbonate, trypsin, chymotrypsin, pancreatic amylase , pancreatic lipase ) **small intestine digestive enzyme secretions: made by enterocyte, also sglt1 & isomaltase pancreatic lipase carboxyl ester lipase enteropeptidase , aminopeptidase, dipeptidylaminopeptidases, tripe ptidases [enterocyte brush border proteases] trypsin[ogen], chymotrypsin[ogen], [pro]carboxypeptidase a & b, [pro]elastase.
