Pancreatic islet

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Pancreatic islet

  1. 1. Pancreatic Islet
  2. 2. What ispancreas??
  3. 3. pancreasIt is a large gland in body that secrete hormones.The cells that make up of pancreatic islet.Also known as “islet of langerhans”It is part of two different organ system -Endocrine system -Digestive system
  4. 4. Con’t…There are 3 main cell in the pancreatic islet :beta cells, which secrete insulin and amylinalpa cells, which secrete glucagondelta cells, which secrete somatostatin
  5. 5. LoCation…Whole a located in the epigastric and lefthypochondriac regions and its right part liesacross the bodies of L1 to L3 vertebrae.It runs transversely across the posteriorabdominal wall behind the stomach, from theduodenum to the spleen, sloping upward fromright to leftIt is approximately 12.5 – 15cm long andweighs from 60 – 100gm.
  6. 6. Location..
  7. 7. Structure...(1) head of pancreas, (2) uncinate process of pancreas, (3)pancreatic notch, (4) body of pancreas, (5) anterior surface ofpancreas, (6) inferior surface of pancreas, (7) superior marginof pancreas, (8) anterior margin of pancreas, (9) inferiormargin of pancreas, (10) omental tuber, (11) tail of pancreas,(12) duodenum
  8. 8. Function of Insulin..Purpose:-Regulate blood glucose (sugar) inthe normal range.Action:-Forces many cells of the body toabsorb and use glucose thereby decreasingblood sugar levels.Secreted in response- High blood glucoseSecretion inhibit by- low blood glucose
  9. 9. FunCtion oF GLuCaGon…Purpose:- Assist insulin in regulating bloodglucose (sugar) in the normal range.Action: Forces many cells of the body torelease (or produce) glucose (increasing bloodsugar).Secreted in response to - low blood glucoseSecretion inhibit by - high blood glucose
  10. 10. SomatostatinPurpose:- Regulate the production andexcretion of other endocrine hormonesAction:- produce by hypothalamus to inhibitinsulin, glucagon, gastrin, and other endocrinehormonesSecreted in response to - High levels ofother endocrine hormonesSecretion inhibit by- Low levels of otherendocrine hormones
  11. 11. summaryResponsible for the endocrine function.It is a large gland in body that secretehormones.Secreted the major hormones in the endocrinesystem
  12. 12. referencesWebsite(google.com)Ross and wilsonYou tube

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