Is the human colon an endocrine organ?
D001078:APUD Cells / Q000378:metabolism; D003106:Colon / Q000502:physiology*; D004702:Endocrine Glands / Q000502:physiology*; D004759:Enterochromaffin Cells / Q000378:metabolism; D005768:Gastrointestinal Hormones / Q000502:physiology*; D006801:Humans; D014660:Vasoactive Intestinal Peptide / Q000502:physiology
D005768:Gastrointestinal Hormones; D014660:Vasoactive Intestinal Peptide