Glands of the Digestive Tract Laboratory Orientation Salivary

Glands of the Digestive Tract Laboratory Orientation

Salivary Glands: Overview

#1801 Parotid gland

Intercalated duct leading to Striated duct.

Striated Duct Cells

#183 -1 Interlobular ducts Intralobul ar ducts

Intralobular Striated duct Interlobular excretory duct

Submandibular gland #183 -1 Sublingual gland #185 -2

Mucous acinus Serous demilune #183 -1

Hepatic Portal Vein Tributaries Splenic v. Portal Vein Superior mesenteric v. Inferior mesenteric v. Netter pl. 293

Hepatic venous drainage Inferior Vena Cava Hepatic Veins Collecting Vein Sublobular Vein Central Vein (Terminal Hepatic Venule) hepatic

#1 Liver: general morphology (not good for Kupffer cells)

Classic Liver Lobules Portal triad

#194 Central Vein (terminal hepatic venule) and sinusoids Endothelial cells Central vein Kupffer cell

#194 Liver Endothelial lining cells Kupffer cells (blue arrows)

Portal Triad Portal vein sinusoids Bile duct br. of hepatic artery Bile duct

#1 Liver Portal Triad (transverse and longitudinal section) Bile duct br. of hepatic artery Portal vein

#194 Classic liver lobule, central vein and portal triad Central vein Portal triad

#194: Portal Triad * bile duct *** ** br. Of hepatic artery ***br. Of portal vein

#194 40 x Central vein Sublobular vein Central vein

#195 Liver (Masson trichrome stain of collagen) Collagen (blue) in the portal canals, and less around the central veins and in the sinusoids. Central vein Portal canals Central vein Portal canal

#194 A canal of Hering Line of low cuboidal cells adjacent to portal canal

Gallbladder and Extrahepatic Bile Ducts (Greater)

#194 Gallbladder Mucosa epithelium lamina propria Smooth muscle Simple columnar ep. Adventitial c. t. Liver

#188 B Pancreas (lobules) The arrows point to the islets of Langerhans

#188 Pancreas (intercalated duct) Intercalated duct Centroacinar cells

Exocrine Pancreas WU Slide 98 Intercalated duct Centroacinar cells

#188 c Interlobular duct

Parotid gland with intercalated (ID) and striated (SD) ducts ID No striated duct in the pancreas SD