the pancreas- by chibesa mumba
DESCRIPTION
Presentation on Pancreas by Chibesa Mumba Grade 9 student. May 2012TRANSCRIPT
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THE PANCREASBy Chibesa Mumba
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Contents
What it is? What its made up of? Exocrine and endocrine cells? Pancreatic diseases Thought-provoking question
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What is it?
A gland that secretes digestive enzymes into the gut
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What is it made of
99% acini Pancreatic duct Islet of Langerhans
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Islet of Langerhans
Discovered by Paul Langerhans in 1869 Group of cells that stand out from
surrounding cells Cells inside islet include A,B,D,F & Epsilon
cells
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Islet cells
Alpha cells produce glucagon Beta cells produce insulin & amylin Delta cells produce somatostatin F/PP cells produce pancreatic polypeptide Epsilon cells produce ghrelin
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Endocrine or Exocrine?
Type of Gland Location Cell Function Comments/Key points
Endocrine Islet periphery Alpha Glucagon production Glucagon is a hormone that increases the sugar in the blood
Endocrine Islet center Beta Insulin & amylin production Insulin decreases the sugar level in the blood & amylin gives humans a full feelingEndocrine Inside islet or islet periphery Delta Somatostatin production Somatostatin is a growth inhibiting hormoneEndocrine Islet periphery PP (F) Pancreatic Polypeptide production Pancreatic polypeptide controls the activities of the pancreasEndocrine Inside islet Epsilon Gherin production Gherin is a hormone that stimulates hungarExocrine Around exterior of pancreas Acini Digetive enzyme production and secretion Acini makes 99% of the pancreas
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Diseases
Pancreatitis Pancreatic cancer Diabetes Mellitus
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Pancreatitis
Severe abdominal pain occurs suddenly Can cause internal bleeding or shock Excess alcohol ingestion & gallstones are
causes Can give pancreas trauma
ACUTE
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Pancreatic cancer
Also called pancreatic carcinoma Common type are exocrine tumors Endocrine tumors are usually malignant
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Thought-provoking Questions
Impact of amylin on weight control Impact of somatostatin on ageing
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THE END