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==Endocrine Function==
 
==Endocrine Function==
*Functional units are the islets of Langerhans, which are embedded throughout the exocrine tissue.
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*Functional units are the '''islets of Langerhans''', which are embedded throughout the exocrine tissue.
 
*Cells of the islets produce hormones that maintain normoglycaemia.
 
*Cells of the islets produce hormones that maintain normoglycaemia.
*There are ''four'' different cell types within each islet that each produce different hormones.
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*There are ''four'' different cell types within the islets of Langerhans that each produce different hormones.
**α cells produce '''glucagon'''
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**α cells produce glucagon. Typically located at the periphery of the islet. Not present in all islets.
**β cells produce '''insulin'''
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**β cells produce insulin. The predominant cell type.
**δ cells produce '''somatostatin'''
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**δ cells produce somatostatin. Low numbers in all islets.
**F cells produce '''pancreatic polypeptide'''
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**F cells produce pancreatic polypeptide
 
**Glucagon raises the blood glucose level.
 
**Glucagon raises the blood glucose level.
 
**Insulin decreses the blood glucose level.
 
**Insulin decreses the blood glucose level.
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