4.1.1 POJA-L4059+La0160
Title: Enteroendocrine cells in the jejunum (rat)
Description: Electron micrographs (A, B).
The endocrine cells (1) are characterized by the presence of numerous small electron-dense granules in the basal zone of the cell below the nucleus and near the basal lamina.
(2): Paneth cell with many large dark granules at the apical site of the cell towards the lumen of the crypts.
(3): Tall columnar cells with microvilli and dark small resorption-vesicles (arrow, ↘) at the top of the cell.
Note the broad dilatations at the basal site of the cell (B, *).
The Paneth cells produce lysozyme, alpha-defensins, tumor necrosis factor, phospholipase and some other products with antimicrobial activity. The heterogeneous population of intestinal endocrine cells produces many hormones such as substance-P or secretin, somatostatin, chromogranin A, serotonin, glucose-dependent-insulinotropic polypeptide, glucagon-like-peptide-1 and cholecystokinin.
Keywords/Mesh: jejunum, enteroendocrine cell, Paneth cell, resorption cell, electron microscopy, histology, POJA collection
Title: Enteroendocrine cells in the jejunum (rat)
Description: Electron micrographs (A, B).
The endocrine cells (1) are characterized by the presence of numerous small electron-dense granules in the basal zone of the cell below the nucleus and near the basal lamina.
(2): Paneth cell with many large dark granules at the apical site of the cell towards the lumen of the crypts.
(3): Tall columnar cells with microvilli and dark small resorption-vesicles (arrow, ↘) at the top of the cell.
Note the broad dilatations at the basal site of the cell (B, *).
The Paneth cells produce lysozyme, alpha-defensins, tumor necrosis factor, phospholipase and some other products with antimicrobial activity. The heterogeneous population of intestinal endocrine cells produces many hormones such as substance-P or secretin, somatostatin, chromogranin A, serotonin, glucose-dependent-insulinotropic polypeptide, glucagon-like-peptide-1 and cholecystokinin.
Keywords/Mesh: jejunum, enteroendocrine cell, Paneth cell, resorption cell, electron microscopy, histology, POJA collection