《消化腺全英》PPT課件

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1、 Components digestive glands found in the wall of digestive tract accessory digestive glands:salivary glands / pancreas / liver General structure* Parenchyma (functional portion of an organ, as distinguished from the supporting tissue):acini / gland cellsduct* Stroma (unfunctional portion of an orga

2、n):capsule, CT inside. Salivary glands* Parotid* Submandibular G.* Sublingual G.Three types of acini* serous* mucous * seromucousFunction: * moistening food * carbohydrate digestion * Secrete IgA Pancreas positioned retroperitoneally on the posterior wall of the abdominal cavity at the level of the

3、second and third lumbar vertebrae. no distinct capsule, but is covered by a thin layer of LCT both an exocrine * ribonuclease * amylase hydrolyses starch at the six corners of the lubule are hepatic triads.2. Portal lobule: A triangular structure with the portal area at its center. Three central veins are found at the peripheral boundary points.3. Liver acinus: An elongate diamond-shaped lobule; a central vein is at the ends of each of the two elongated points of the diamond.