The first of three sections of the small intestine, the duodenum, produces large quantities of mucus to protect the intestinal lining from acid in the chyme. Measuring about 20 feet (6 meters ...

Their primary function is to absorb nutrients and vitamins. The small intestine is made up of three parts—the duodenum (first part), the jejunum (middle part), and the ileum (end part).

Extract: At 15 days after birth, the small ... villi of the duodenum and the jejunum. It was concluded that both diet and hormones were important factors in the marked changes in intestinal ...

It drains the pancreatic fluid from the gland and carries it to the duodenum (the first part of the small intestine). The main pancreatic duct merges with the bile duct to form the ampulla of Vater (a ...