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GI - Panc/Large Int
USCSOM Physiology: GI Part V - Pancreas/Large Intestine
Question | Answer |
---|---|
What is CFTR regulated by in the pancreatic duct cell? | cAMP and secretin |
What exchanger gets bicarbonate into the lumen of the pancreatic duct? | bicarb/Cl exchanger |
What are the three phases of stimulated pancreatic secretion? | Cephalic, Gastric, Intestinal |
What pancreatic secretory stage is the most active? | intestinal phase |
What mediates pancreatic secretion in the intestinal stage? | secretin, CCK, vasovagal reflex |
What is the gastrocolic reflex? | distension of the stomach increases colonic motility |
What is the rectophincteric reflex? | reflex that fills anus in preparation for defication |
What is diverticula? | connective tissue in the colon bulges out in pouches; 1/2 of Americans over 50 have this |
What are some functional consequences of bacteria in the colon? | production of Vit K, metabolism of steroid and sterols, control of 'bad' bacteria |
What is the most common cause of antibiotic associated colitis? | Clostridium difficle |
What is IBS? | irritable bowel syndrome; hyperactivity in the intestines |
What is Hirschsprung's disease? | failure of enteric nervous system to develop in the colon |
What is Chagas' disease? | parasitic infection that destroys eneteric nerves |