Fill in the blanks. The first part of the small intestine is called the . This is where most of the
digestion takes place. The duodenum has small tubes called ducts that connect
to the , , and gall bladder. These organs release
into the duodenum, which completes the chemical breakdown of food. The remaining length of the
small intestine is where occurs. The small intestine is covered with interior
folds called . These structures maximize the over which
nutrients and water can be absorbed into the .