Final answer:
The exocrine portion of the pancreas consists of acinus cells that secrete enzyme-rich pancreatic juice into the pancreatic ducts. These ducts merge to form two dominant ducts, with the larger duct joining the common bile duct and the smaller duct running directly into the duodenum.
Step-by-step explanation:
The exocrine portion of the pancreas is made up of acinus cells. These cells secrete enzyme-rich pancreatic juice into the pancreatic ducts. The pancreatic ducts merge to form two dominant ducts, with the larger duct joining the common bile duct just before entering the duodenum. The smaller duct, known as the accessory duct, runs directly into the duodenum.