On the other hand, when blood sugar levels fall, the pancreas secretes another hormone, glucagon, the increased concentration of which stimulates the muscles and liver to release sugar, thus maintaining an equilibrium.
反之，血糖濃度降低時，胰臟分泌的另一種荷爾蒙──「升糖素」──濃度便會增加，刺激肌肉、肝臟放出糖分，使血糖維持恆定。