Which cells are identified as enterochromaffin cells in the stomach?

Enterochromaffin cells, specifically located in the gastric mucosa, are identified as enterochromaffin-like cells (ECL). These specialized cells play a crucial role in the gastrointestinal system by producing and releasing histamine, which is a key mediator in the regulation of gastric acid secretion. ECL cells are situated in the gastric glands, primarily in the body of the stomach, and their activity is stimulated by factors such as gastrin.

In contrast, other cell types mentioned have distinct functions that do not align with those of enterochromaffin cells. G cells are responsible for secreting gastrin, a hormone that stimulates acid production in the stomach but lacks the characteristics of ECL cells. D cells, on the other hand, secrete somatostatin, which inhibits gastric acid secretion, further differentiating their roles from those of ECLs. Finally, chief cells are involved in producing pepsinogen, which is converted to pepsin to aid in the digestion of proteins. Each of these cell types contributes to gastric functions, but it is the ECL cells that are specifically classified as enterochromaffin cells due to their histamine-producing capabilities.