INTEGBI 132 Study Guide - Midterm Guide: Portal Vein, Stomach, Common Bile Duct

• School: Berkeley
• Department: Integrative Biology
• Course: INTEGBI 132
• Professor: Brooks George

Document Summary

The enteric nervous system coordinates digestion, secretion, and motility to optimize nutrient absorption. Its activity is modified by information from the cns and from local chemical and mechanical sensors. Gi hormones: gastrin, cck, secretin, gip (all peptides: gastrin: stimulated by antrum (stomach) aas &parasympathetic ns. Stimulates acid secretion & motility stomach, ileum & large intestine (li: choleocystokinin (cck) a hormone and an enterogastrone. Stimulated by si luminal aas and ffas in the chyme. Circulates to and simulates the pancreas to release trypsin and lipase. Causes gallbladder contraction, sphincter of oddi relaxation increased bile flow into common bile duct and duodenum: secretin. Hormones affecting appetite: insulin: pancreatic -cells (-, ghrelin: stomach fundus (+, leptin: white adipose (wa) (-, peptide npy (yy3-36): colon (-, adiponectin: wa (+) for insulin, resistin: wa (-?) for insulin. Leptin, an adipokine: 16-kda glucosylated protein of 146 aas, secreted by white adipose (wa, receptors on neurons of npy (-) and pomc.