part of ends during starts during islets of Langerhans death enteroendocrine cell alpha cell 2016-11-16T18:07:16Z A type of endocrine cell in the pancreatic islets of the pancreas. They make up some of the islet cells synthesizing and secreting the peptide hormone glucagon, which elevates the glucose levels in the blood. XAO:0005164 eriksegerdell pancreatic A cell alpha-cell alpha cells alpha-cells CL:0000171 xenopus_anatomy NF stage 39