Where are bile salts reabsorbed in the small intestine?

• A. Duodenum.
• B. Jejunum.
• C. Ileum.
• D. Cecum.

Answer: (C)

Verified step by step guidance

1. Understand the role of bile salts: Bile salts are crucial for the digestion and absorption of fats in the small intestine. They are produced in the liver, stored in the gallbladder, and released into the small intestine.
2. Identify the sections of the small intestine: The small intestine is divided into three main parts - the duodenum, jejunum, and ileum. Each section has specific functions in digestion and absorption.
3. Learn about the enterohepatic circulation: Bile salts are reabsorbed into the bloodstream and returned to the liver in a process known as enterohepatic circulation. This recycling is essential for efficient digestion.
4. Focus on the ileum: The ileum is the final section of the small intestine and is specifically responsible for the reabsorption of bile salts. This allows them to be reused in the digestive process.
5. Recognize the importance of reabsorption: By reabsorbing bile salts in the ileum, the body conserves resources and maintains an adequate supply of bile salts for future digestion, highlighting the efficiency of the digestive system.