pancreas. human silhouette with highlighted internal organs. closeup of pancreas and islets of langerhans

actions anatomy beta biological blood care cell cells closeup diabetes diabetic diagram digestive disease education endocrine fiber function gland glucagon glucose glycogen health healthy hormone human hyperglycemia illustration insulin internal islet islets langerhan langerhans leptin medical medicine mellitus metabolic metabolism muscle organ pancreas pancreatic pancreatitis production resistance science secretion silhouette striated structure sugar system type vector