ATI Anatomy and Physiology Related

Review ATI Anatomy and Physiology related questions and content

Which of the following structures of the gastrointestinal system absorbs iron and bile salts?

  • A. Ileum
  • B. Jejunum
  • C. Colon
  • D. Duodenum
Correct Answer: A

Rationale: The correct answer is the Ileum. The Ileum is the final section of the small intestine where the absorption of key nutrients such as iron and bile salts occurs. The Jejunum mainly absorbs nutrients like carbohydrates and proteins, while the Duodenum primarily facilitates the absorption of minerals and vitamins. The Colon's main function is to absorb water and electrolytes, not iron and bile salts. Therefore, choices B, C, and D are incorrect.