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GI Secretory Cells
| Cell | Stimulated by | Secretes | Inhibited by |
|---|---|---|---|
| Enterochromaffin-like Cell (ECL) | Stimulated by ACh, Gastrin | Secretes Histamine | Inhibited by Somatostatin |
| Parietal Cell | Stimulated by ACh (M3R), Gastrin (CCKR), Histamine (H2R) | Secretes H+ | Inhibited by Prostaglandins/Somatostatin |
| D Cell | Stimulated by High H+ | Secretes Somatostatin | Inhibited by Low H+ |
| G Cell | Stimulated by ACh, GRP, Peptides/AA | Secretes Gastrin | Inhibited by Somatostatin |
| Mucous Cell | Stimulated by ACh, PGE, Somatostatin | Secretes Mucus & HCO3- | Inhibited by Low Prostaglandins/Somatostatin |