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GI Glands lab notesAcinusductsotherParotid:serousintercalated (s. cuboidal), long, many *fatstriated (s. columnar) ct septaeexcretory (st columnar to PSC)Submandibular:serous/mucous intercalated (s.cuboidal)*striated (s. columnar)Excretory = stratified cuboidal to PSCSublingual:mucousintercalated(serous demilunes)*NO striated ducts (or very few)2486025104140Myoepithelial cell0Myoepithelial cell123825104140Salivon0SalivonPancreas:serous acinus*NO striated ductslittle c.t.*centroacinus cellsNO fatIslets of LangerhansIntracalated (s.cuboidal) Interlobular duct (s.columnar)Excretory duct (s.columnar + goblet) – 2 layers sm muscleLIVER: Cords of hepatocytes = s. cuboidal epithelium Blood sinuses (large bore capillaries) between hepatic cordsCentral vein Portal tracts = hepatic artery; portal vein; bile duct (s. cuboidal epithelium); lymphatic vesselExcretory bile duct = s. columnar epithelium with microvilliGALL BLADDER:Mucosa- s. columnar epithelium; lamina propriaMuscularis- smooth muscle layerAdventitia – dense irregular CT or fatty CTOr Serosa- free side has a mesothelium ................
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