Which of the following is characteristic of the ileum but not of the duodenum or jejunum?
A) Brunner's glands
B) Leaf-shaped villi
C) Glandless submucosa
D) Paneth cells
E) Peyer's patches

Question

Quizplus · Accepted Answer

Peyer's patches are characteristic of the ileum, but not of the duodenum or jejunum. These are collections of lymphoid tissue that play a role in the immune system's defense against pathogens in the gut. Brunner's glands are found in the duodenum, Paneth cells are found in the small intestine (including the ileum), and both the duodenum and jejunum have leaf-shaped villi and glandless submucosa.

Which of the Following Is Characteristic of the Ileum but Not