Module 6: Accessory Digestive Glands Flashcards
The name for the capsule surrounding the liver
Glisson’s capsule
What defines the center of each liver lobule?
Centrilobular vein/hepatic venule
The two blood vessels that supply the liver
Hepatic artery (25% of blood) and hepatic portal vein (75%)
Four structures that make up a portal tract
Hepatic portal venule, hepatic arteriole, bile-collecting duct and a lymphatic vessel
Type of epithelium lining the gallbladder
Simple columnar epithelium with microvilli
8 major functions of the liver
Detoxification of metabolic waste and deamination of amino acids to urea
Breakdown old RBC and recycle components
Production and secretion of bile
Production and secretion of plasma proteins (coagulation factors and albumin)
Production of lipoproteins, cholesterol, and phospholipids
Synthesis and storage of glycogen
Detoxification of toxins and drugs including alcohol
Storage of vitamins and iron
Large polyhedral cell which stores glycogen
Hepatocyte
Also known as the hepatic lipocyte
Stellate cell
Stellate cell
Functions in vitamin A storage and production of extracellular matrix and collagen
Function of the gallbladder
Storage and concentration of bile
What stimulates the gallbladder to contract and release bile?
CCK (cholecystokinin) from the neuroendocrine cells of the duodenum, when fat enters the duodenum
Components of the alkaline enzyme solution secreted by the exocrine pancreas
Watery fluid consisting of sodium bicarbonate to help neutralize chyme; pancreatic amylase; pancreatic lipase; nuclease to digest nucleic acid; trypsinogen, chymotrypsinogen and procarboxypeptidase to digest proteins
What hormones control the secretions of the exocrine pancreas?
Secretin, cholecystokinin (CCK) and gastrin
Which hormone controls the production of alkaline fluid from the pancreas?
Secretin
Classify the exocrine glands of the pancreas
Compound acinar gland
