Test will mostly be on symptoms, diseases, treatment, diagnosis. Parietal secrete hcl intrinsic pathway, vitamin b absorbtion: gastrin gastrin motility. Chyme stimulates release of: cholecystokinin travels in bloodstream to. Pancreas, release digestive enzyme: secretin travels to. Parasympathetic, sympathetic: vagus nerve (x, acetocholine. Stomatits (cold sore) herpes simplex virus: remains latent most of time. Gerd caused by h. pylori: causes decreased strength of les, barrett esophagus squamous to goblet. Most common risk factor for esophageal cancer. Hiatal hernia: sliding, rolling, women are affected more (pregnancy, female with heartburn, dysphagia, regurgitation. Gastroentritis: acute virus and bacteria, imbalance in normal bacterial flora, chronic result of gi disorder, treatment fluid and electrolytes. Peptic ulcer disease: caused by h pylori (most of the time) or nsaids. Nsaids block two types of ace inhibtors. Irritable bowel disease: chron"s, ulcerative colitis leads to colon cancer, irratibable bowel syndrome psychological. Portal vein or hepatic artery sinusoids central vein hepatic vein .