Editing Pancreas (section)

== '''Microscopic anatomy''' ==

* Islets of Langerhans -     endocrine cells
** Comprise <2% of overall      pancreatic mass - about 1 million islets, with each islet containing      about 3000 cells and measuring from 40um to 1mm
** Afferent arterioles enter      the islet on the periphery into the centre of the islet, and then flows      on to the exocrine parts of the pancreas, which facilitates endocrine      regulation
** Composed of four cell types:
*
* Exocrine system - acinar     cells
** Contained in clusters
** Draining into a centralised      ductal system