Please enable JavaScript.
Coggle requires JavaScript to display documents.
Upper GI and CHO digestion (Production and stimulation of HCl (Parietal…
Upper GI and CHO digestion
Upper GI
Swallowing Phases: Oral, pharyngeal and oesophageal
Oesophagus: C6-T10. Upper O. sphincter relaxes during swallow
Pharynx: Ends C6
Gastric Phases: Cephalic, Gastric, intestinal
Glucose Absorption
Na+ and glucose together, GLUT 2 from enterocyte into blood
SGLT
Production and stimulation of HCl
Parietal Cell
H+/K+/ATPase
HCl
Antacid
Intrinsic Factor (VitB12 abs)
Omeprazole (PPI)
Vegus Stimulation -> M3
#
G Cell -> Gastrin -> CCKb
#
Chief Cell
Pepsinogen and Chymosin
Pepsin -> protease
ECL Cell -> Histamine -> H2
#
Ranitidine
Enzyme secretion
Stomach: Pepsin, gastric acid and lipase
Pancreas: Amy, phospho/Lip, esterase
Mouth: Amylase and lipase
Transverse colon: Bacterial metabolism
H. Pylori
Amoxacillin + clarithromycin/metronidazole
Lacteal -> thoracic duct
Histology
Stomach: Simple columnar epith.
Funds, Body, Antrum, Pylorus. Rugae. Great and Lesser curvature
Non keratinising stratified squamous epith: Mouth, oesophagus,
pouch of Morison
(deepest part of abdominal peritoneal cavity when supine)
Protein Absorption
Large
Peptidases
Aminos
Carrier
Di and Tri
Carrier
Embryology
Midgut: Sup. mesenteric, jejenum
Hindgut: Inf. mesenteric. Sigmoid and descending Colon
Forget: Oesophagus, stomach, Celiac artery, liver, gall bladder, pancreas
Meckle's Diverticulum: Remnant of Vitelline Duct