Jejunum

Ferrous iron is more soluble and absorbed more efficiently than ferric (Fe³⁺) in the duodenum/proximal jejunum.

What our notes say

• Ferrous iron is more soluble and absorbed more efficiently than ferric (Fe³⁺) in the duodenum/proximal jejunum. (Hematopathology MCQs & Essays: MBChB Exam Revision Guide)
• CCK is a peptide hormone released by I-cells in the duodenum and jejunum in response to fats and proteins. (MBMP2300: Medical Physiology II MCQs)
• Egg StageAdult worms reside in the jejunum and lay segmented eggs that are excreted in feces. (Hookworms (Ancylostoma duodenale & Necator americanus))
• It is the only protozoan parasite found in the lumen of the small intestine (duodenum and upper jejunum). (Giardia lamblia and Giardiasis)
• Absorbed in duodenum and proximal jejunum as Fe²⁺ (ferrous form) (Haematology Revision: Haematopoiesis, Anaemia & IDA Guide)
• Q3 — JEJUNUM vs ILEUM & INGUINAL CANALa) Four Differences — Jejunum vs Ileum (Master First-Year Anatomy: Must-Know Essays & Key Concepts)

Study material on Jejunum

• Master First-Year Anatomy: Must-Know Essays & Key Concepts
• Parasitic Protozoa
• MEDICAL PHYSIOLOGY II ESsays
• Giardia lamblia and Giardiasis
• LECTURE 7: GI tract Hormones

Related topics

• Duodenum
• Ileum
• Gallbladder
• Stomach
• Autonomic Nervous System
• Colon
• Countercurrent Multiplier
• Vagus Nerve
• Pancreas
• Parasympathetic Nervous System