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==Histology==
 
==Histology==
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===Exocrine===
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[[Image:Acini and islet.jpg|thumb|right|150px|Acini and islet of Langerhans - © RVC 2008]]
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*Consists of acini, which resemble bunches of grapes.
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*Each acinus consists of a single layer of epithelial cells surrounding a lumen.
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*The epithelial cells produce the secretion (pancreatic juice) containing enzymes, ions and water.
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*The secretion drains into a duct called the intercalated duct.
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**Intercalated ducts converge to make ducts of increasing diameter, which eventually form either the pancreatic or accessory duct.
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**These ducts drain into the duodenum.
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**In some cases the pancreatic duct unites with the bile duct, and bile and pancreatic juice enter the duodenum together.
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===Endocrine===
    
==Species Differences==
 
==Species Differences==
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