'1 of the 3 sections of the small intestine'
Duodenum, jejunum, ileum
THE HUMAN BODY: 1 of the 3 sections of the small intestine
1 of the 3 sections of the small intestine
1 of the 3 sections of the small intestine
THE HUMAN BODY
Duodenum, jejunum, ileum
THE HUMAN BODY