Medicine Miscellaneous (Endocrinology) 05a13819 Somatostatin is secreted by : A D-cell B A-cell C B-cell D Dl-cell High-Yield Explanation Ans. is A D-cell (Ref Ganong, 20/e, p. 339). Delta cells secrete - somatostatin* Beta cells secrete - insulin* Alpha cells of pancreas - glucagon*