Duodenum is the region where pancreatic juice containing pancreatic lipase, pancreatic amylase and pancreatic protease is drained into it.
Next come the jejunum ( it is ok if you do not want to name it) where maltase, intestinal lipase and intestinal protease are secreted to complete digestion of starch, fats and proteins.
Ileum is the region where most villi are found and absorption takes place.