Arrange these parts of the small intestine in order from largest number of villi and circular folds to smallest number of villi and circular folds.
1. duodenum
2. ileum
3. jejunum
a. 1,2,3
b. 1,3,2
c. 2,1,3
d. 2,3,1
e. 3,2,1
Answer: B
Feedback : In sequence, the parts of the small intestines having the largest number of villi and circular folds to those having the least are: 1, 3, 2.