Hormones of the digestive system Create Talk0 Category page This page needs content. You can help by adding a sentence or a photo! Add to this page! “ Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Vasoactive intestinal peptide Pages in category "Hormones of the digestive system" This category contains only the following page. V Vasoactive intestinal peptide Retrieved from "http://psychology.wikia.com/wiki/Category:Hormones_of_the_digestive_system"