Jejunum (Jejunum)
Educational content only — not medical advice.
Anatomy
The proximal two-fifths of small intestine after the duodenum (~2–2.5 m): thicker, redder walls with deep circular folds (plicae) and a single-tier vascular arcade — the prime site of sugar and protein absorption.
Clinical notes
The commonest site of small-bowel obstruction and volvulus within hernias; extensive resection loses folate and calcium absorption first — short-bowel syndrome.
Related structures
Educational references
FAQ
What is the role of the Jejunum?
The proximal two-fifths of small intestine after the duodenum (~2–2.5 m): thicker, redder walls with deep circular folds (plicae) and a single-tier vascular arcade — the prime site of sugar and protein absorption.
Why is the Jejunum clinically important?
The commonest site of small-bowel obstruction and volvulus within hernias; extensive resection loses folate and calcium absorption first — short-bowel syndrome.
Source & license
BodyParts3D, © The Database Center for Life Science licensed under CC Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/). license details