The portion of the small intestine that performs most absorption is the
A) ileum.
B) duodenum.
C) jejunum.
D) pylorus.
E) cecum.

Question

Quizplus · Accepted Answer

The jejunum is the portion of the small intestine that performs most absorption. While the duodenum is responsible for the initial stages of digestion and the ileum connects to the large intestine, the jejunum is where the majority of nutrients are absorbed into the bloodstream. The pylorus is actually part of the stomach and the cecum is part of the large intestine, so they are not involved in small intestine absorption.

The Portion of the Small Intestine That Performs Most Absorption