4.4.1 POJA-L3328+2950+2865
Title: β-cells in islet of Langerhans in the exocrine pancreas (dog)
Description: (A): Electron micrograph scheme of β-cells. (B, C) Electron micrographs of β-cells.
The β-cells form 60-80% of all endocrine pancreatic cells and they produce insulin. Their secretory granules (3) (β-granules) are surrounded by a membrane and contain polygonal, bar-like crystalloid inclusions, leaving ample space for a clear halo around the crystalloid.
The cell scheme in (A) shows standard configuration for this cell type with a well-developed Golgi (4), secretory granules (3), reasonable quantity of RER and mitochondria.
In (B) the β-cells are close to the characteristic secretory serous cell type of the exocrine pancreas showing a vastly developed RER profile and numerous large secretory granules (2). Note the close vicinity of a capillary (1) near to the endocrine cells.
Keywords/Mesh: pancreas, β-cells, endocrine, insulin, electron microscopy, histology, POJA collection
Title: β-cells in islet of Langerhans in the exocrine pancreas (dog)
Description: (A): Electron micrograph scheme of β-cells. (B, C) Electron micrographs of β-cells.
The β-cells form 60-80% of all endocrine pancreatic cells and they produce insulin. Their secretory granules (3) (β-granules) are surrounded by a membrane and contain polygonal, bar-like crystalloid inclusions, leaving ample space for a clear halo around the crystalloid.
The cell scheme in (A) shows standard configuration for this cell type with a well-developed Golgi (4), secretory granules (3), reasonable quantity of RER and mitochondria.
In (B) the β-cells are close to the characteristic secretory serous cell type of the exocrine pancreas showing a vastly developed RER profile and numerous large secretory granules (2). Note the close vicinity of a capillary (1) near to the endocrine cells.
Keywords/Mesh: pancreas, β-cells, endocrine, insulin, electron microscopy, histology, POJA collection