digestive process after surgery: stomach, food pathway, duodenoileostomy, bile flow, alimentary limb, common channel, and

digestion stomach duodenoileostomy bile alimentary limb common channel ascending colon surgery gastrointestinal esophagus food absorption intestines duct small intestine large gastric bypass anatomy digestive tract nutrient flow process surgical procedure duodenum ileum resection anastomosis system gallbladder peristalsis enzyme secretion metabolic bowel movement pathway gut canal chyme motility salts intestinal loop health breakdown enzymes intervention graphic