Duodenum Why is such a small (20-25 cm) interval of the intestine given a special name? Cause it has a unique function✔️ The duodenum is connected to the pancreas and gallbladder, where a special secret is produced. This connection occurs due to the ducts with this secret, which exit into the intestinal cavity through small "papillae". Bile from the gallbladder emulsifies fats - separates large fat droplets into smaller ones to facilitate their digestion. The secretion from the pancreas also contains enzymes processing proteins, fats, and carbohydrates.