Some cells were discovered
in the last century to be different from other gastrointestinal cells
(GIT). These cells were called basal granulated cells based in light
microscopic findings. They were latter on discovered to have endocrine
functions. The following names have been ascribed to them: basal
granulated cells, gastroenteric endocrine cells, enteroendocrine
cells. Recently other name have been applied.
Enterochromaffin cell was applied after demonstrating
reaction in the contained granules of these cells.
Argyrophilic and argentaphinic cells
were the names applied after the discovery of
and argentaphin reactions. They were later called
APUD cells and gut
paraneurons. They are as follows