The pancreas, insulin, and glucagon.
D005934:Glucagon; D006801:Humans; D007328:Insulin / Q000502:physiology*; D007515:Islets of Langerhans / Q000502:physiology*; D010179:Pancreas
D007328:Insulin; D005934:Glucagon
GLUCAGON; INSULIN/physiology; ISLANDS OF LANGERHANS/physiology