the pancreas carries out endocrine and exocrine functions
The pancreas is a secretory structure with an internal hormonal role (endocrine) and an external digestive role (exocrine). The endocrine part is composed of hormonal tissue distributed along the pancreas in discrete units called islets of Langerhans. Islets of Langerhans have a well-established structure and form density routes through the exocrine tissue. The exocrine part has two main ducts, the main pancreatic duct and the accessory pancreatic duct. These drain enzymes through the ampulla of Vater into the duodenum.
Pancreas