- The pancreas is both an exocrine and an endocrine gland.
- The endocrine part of the Pancreas are called Islets of Langerhans.
In the Islets of Langerhans:
Alpha cells produce glucagon
- a catabolic hormone which can mobilise stores of glycogen, fat, and protein to act as energy sources during food deprivation.
Beta cells produce insulin
- an anabolic hormone which causes the uptake and use of glucose from the blood during times of excess nutrient availability.
- produce somatostatin (inhibits growth hormones) and gastrin.