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Published byBridget Gilbert Modified over 9 years ago
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Large glands of digestive system Pancreas
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Function of liver : 1. Syntesis: Bile Plasma proteine Plasma lypoproteines (vitamine K, D, E, A, cholesterine) 2. Detoxication 3. Destruction of spent red cell and reclamation of their constituens 4. Universal haemopoetic organ 5. Endocrine - somatomedine
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LIVER & Pancreas LIVER Bile Hepatic artery Portal vein GI worm Hepatic veins
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Liver vasculature
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Liver lobule
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Liver specimen
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Liver specimens
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HEPATIC PARENCHYMA epithelial working tissue Plate of hepatocytes SINUSOID Plate of hepatocytes Endothelial cells Space Disse SINUSOID Kupffer cell blood PIT cell Itto cell (stellate cell)
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CELL TYPES & ARRANGEMENT OF LIVER Microvilli Hepatocytes in plates Bile canaliculus SPACE OF DISSE Fenestrated Endothelial cells SINUSOIDKupffer cell STELLATE CELL HEPATOCYTE ENDOTHELIAL CELL KUPFFER CELL STELLLATE CELL
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Hepatocyte, blood capilaries, bile canaliculus
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Hepatocyte electron microhpoto
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bile canaliculus electron microhpoto
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Hepatocyte, blood capilaries, bile canaliculus
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Schema of clasiccal and portal lobules and liver acinus
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gallbladder
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Epithelium of gallbladder
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pancreas
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Acinus and duct of pancreas
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Homogenic and zymogenic zones
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pancreatocyte
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Langerhans islets
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Classification of insulocytes: Cells%hormonfuncion В70-75 insulin insulin Lowers blood glucose, activates the formation of glycogen in the cells А20-25glucagon Increases blood glucose by glycogen clutch D5-10 VIP (vasoactive intestinal pep- tide), gastrin Reduces BP and simulates juice and hormone secretion D1-D1-D1-D1-1-2somatostatin Delays secretion of insulin and glucagon РР, F 2-5 pancreatic polypeptide Inhibits secretion of pacreatic juice
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В and А cells inside Langerhan’s Islands
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Insulocytes and fenestrated blood capillaries
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Salivary glands Parotide, Submundibular, Sublingual+ numerous minor FUNCTIONS І. Exocrine 1. Food moistening 2. Desinfection 3. Digestion 4. Articulation ІІ. Endocrine (parotin, insulin-like factor, epithelium growth factor, nerve growth factor, vaso-active intestinal polypeptide, glucagon, callicrein, renin...) ІІІ. Excretion ІV. Homeostatic Saliva 1.Water-99% 2.Mineral (Na, K, Cа, Fe …) 3. Organic (enzymes, mucous) Cells (leukocytes, epitheliocytes)
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MFU– ACINUS secretory potion+ intrecallated duct+ striated duct
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Parotid gland
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Submandibular gland
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submandibular
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Sublingual gland
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