Islets of Langerhans contain beta cells and are located within the pancreas. Beta cells produce insulin. Insulin is the main hormone in the body that regulates glucose.
Review Date 10/18/2017
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.