Which organs have ducts that lead to the small intestines - heart and liver stomach spleen pancreas large intestine kidney?

The organs that have ducts that lead to the small intestines are the pancreas and the liver.

The pancreas produces enzymes that help digest food, and these enzymes are released into the small intestines through the pancreatic duct. The liver produces bile, which helps digest fats, and this bile is released into the small intestines through the common bile duct.