Sections: Prologue | Before Lewis & Clark | Lewis & Clark | After Lewis & Clark When Thomas Jefferson sent Lewis and Clark into the West, he patterned their mission on the methods of Enlightenment science: to observe, collect, document, and classify.
Partially digested food, or chyme, from the stomach is mixed with bile from the liver and pancreatic juice from the pancreas to complete its digestion in the duodenum. The jejunum is the middle section of the small intestine that serves as the primary site of nutrient absorption. It measures around 3 feet in length. The ileum is the final section of the small intestine that empties into the large intestine via the ileocecal sphincter.
  In the jejunum of the small intestine just after the duodenum where pancreatic amylase is added.   In the jejunum of the small intestine just after the duodenum where â¦ pancreatic amylase is added.  In the small intestine; the first section called the duodenum.2 people found this useful. Blu WikiAnswers. 518,948 Contributions. Answered. In the jejunum of the small intestine just after the duodenum where â¦ pancreatic amylase is added.   In the small intestine; the first section called the duodenum. 2 people found this useful. Blu WikiAnswers. 518,948 Contributions. Answered.