The Part of the Small Intestine with the Largest Resident

Question

The part of the small intestine with the largest resident flora (microbiota) is the:
A)duodenum
B)jejunum
C)ileum
D)cecum

Accepted Answer

The ileum is the part of the small intestine with the largest resident microbiota. This is because the ileum has a slower transit time, allowing for more time for bacterial growth and colonization. Additionally, the ileum receives the remaining undigested material from the small intestine and the bacterial flora help to further break down these materials.