324Lecture17 digestive tract

324Lecture17 digestive tract - Digestive Tract Associated...

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Digestive Tract Associated Organs
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Pancreas Pancreas – thin capsule (thin DICT); forms septa; covered with visceral peritoneum. Exocrine Pancreas - majority of the organ; acini of 8-15 cuboidal cells in delicate reticular CT; no myoepithelium. Acini are irregular arranged and separated by vessels, nerves, and ducts.
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Pancreas Duct System: a) centroacinar - simple squamous epithelium that extends up into the acinus. b) intercalated - simple cuboidal epithelium c) intralobular - simple cuboidal to simple columnar epithelium d) interlobular - simple columnar epithelium, in septa.
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C = condensing vacuole S = secretory (zymogen) granule
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Islets of Langerhans Islets separated from exocrine parenchyma by thin reticular CT. Cuboidal cells in cords with blood capillaries between. Cell Types: a) A or alpha - glucagon, increases blood sugar level. b) B or Beta - most numerous cell; insulin, decreases blood sugar. c)
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This note was uploaded on 01/04/2012 for the course BIO 324 taught by Professor Crawford during the Spring '09 term at Western Kentucky University.

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324Lecture17 digestive tract - Digestive Tract Associated...

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