Pancreas - Structure & Function

Explore the structure and function of the pancreas in this comprehensive 24-minute medical lecture. Delve into the anatomy of this elongated double gland, examining its exocrine and endocrine portions, including the Islets of Langerhans. Investigate the pancreatic duct system and its relationship with the bile duct system, focusing on the common bile duct and ampulla of Vater. Learn about the intricate ductal system, including interlobar, interlobular, and intercalated ducts, as well as the acinar system. Understand the importance of bicarbonate ion secretion and the roles of secretin and acetylcholine. Examine the structure of acinar cells, including their protein-making machinery and secretory vesicles. Study the endocrine function of the Islets of Langerhans and the various cell types involved. Discover the enzymes produced by the pancreas, including exopeptidases, endopeptidases, lipases, and amylases, and their activation process. Finally, gain insights into acute and chronic pancreatitis, their causes, and diagnostic indicators.