We've learned now that the duodenum, ileum and jejunum are all part of the small intestine.
Inside your intestines are small things along the walls like little fingers.
These are called your intestinal villus, or just one of them is called a villi.
They are very small, and they help the intestines absorb all the good things from your food that your body needs.
(from: wikipedia - intestinal villus)
Kid Facts - Blast from the past: Calf Muscle
