KINS 1224 Study Guide - Midterm Guide: Ileum, Starch, Chymotrypsin
Document Summary
Describe the digestive secretion and functions of the liver, gallbladder, and pancreas. Liver has hepatocytes that absorb glucose, aa, iron, vitamins and other nutrients from the blood for metabolism and storage. The liver also secret albumin, lipoproteins, clotting factors, angiotensinogen and other products in the blood. Between meals they break down stored glycogen and release glucose into the circulation. Gallbladder is responsible for concentrating and storing the bile. The bile consists of minerals, cholesterol, neutral fats, phospholipids, bile pigments, and bile acids. Bile increases the absorption of fats, it is an important part of the absorption of the fat-soluble substances, such as the vitamins a, d, e, and k. The endocrine part is the pancreatic islets which secrete insulin and glucagon. 99% of the pancreas is exocrine tissue that can secrete 1200-1500ml of pancreatic juice. Pancreatic juice is an alkaline mixture of water, enzymes, zymogens, sodium bicarbonate, and other electrolytes.
