B cell

 

  

 

B-cells are APUD, entero endocrine cells as the majority of cellular elements in the islets of Langerhans of the pancreas. They have characteristic granules having various shapes with an electron dense cortex. The granules have a size 200 to 400 m in diameter. The pericapillary space between B cell have microvilli which are useful for detecting changes in blood glucose levels. Areas on the cell membrane which are devoid of microvilli are thought to be secretory areas. Mechanism of secretion of insulin by the cell have been proposed by various investigators.

 

 

 

 

 

 

 

 

 

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