| Stomach |
Histamine, Gastrin, Serotonin, Somatostatin, Gastrin Releasing Peptide |
| Duodenum/Upper Jejunum |
Gastrin, Serotonin, Somatostatin, Gastrin Releasing Peptide |
| Ileum/Cecum |
Enteroglucagon, Serotonin, Substance P, Tachykinins |
| Appendix |
Enteroglucagon, Peptide YY, Serotonin, Somatostatin |
| Colon/Rectum |
Enteroglucagon, Serotonin, Somatostatin |
| Pancreas |
ACTH, Calcitonin, Cholecystokinin, Corticotropin-Releasing Hormone, Gastrin, Glucagon, Growth Hormone-Releasing Hormone, Growth Hormone-Releasing Factor, Insulin, Neurotensin, Pancreatic Polypeptide, Parathyroid Hormone-Related Peptide, Prolactin, Somatostatin, Vasoactive Intestinal Peptide |
