Related Experiment Video
Updated: Apr 26, 2026

Small Bowel Transplantation In Mice
Published on: August 20, 2007
The length of small bowel in Thai patients
Objective:
To Evaluate the length of small bowel (SB) in Thai patients.
Material And Method:
The present prospective study included Thai adults who underwent elective open laparotomy at the Department of Surgery, Faculty of Medicine Siriraj Hospital between August 2011 and May 2012. Patients who had previous laparotomy, intra-abdominal adhesions, or gross abnormality of SB were excluded The length of SB was measured using an umbilical cord tape, from the duodeno-jejunal junction to the ileo-cecal valve.
Results:
Sixty-four patients were enrolled during the study period According to the exclusion criteria, only 48 patients were eligible for study. There were 27 men and 21 women, with an average age of 60 years (range 28-88). The average length of SB (only jejunum and ileum) was 428 +/- 105 cm (range 169-745). Male adults had about 90 cm longer SB than female adults (468 +/- 105 cm vs. 376 +/- 81 cm; p < 0.01), particularly of the jejunum (179 +/- 78 cm vs. 106 +/- 38 cm; p < 0.01). The ileum accounted for about two-third of the total SB length. There was no association between SB length and age, body weight, height, or body mass index.
Conclusion:
Based on the present study, the total length of small bowel (jejunum and ileum) in Thai patients was approximately 430 cm. Male adults had significant longer SB than female adults, particularly the jejunal segment.
Related Concept Videos
Small Intestine
The small intestine is divided into three main sections - the duodenum, jejunum, and ileum. The duodenum, approximately 25 cm long, is nearest the stomach. It acts as a 'mixing bowl,' where chyme (partially digested food) blends with digestive enzymes from the pancreas and liver. The duodenum's unique...
Anatomy of the Intestines
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Histology of the Small Intestine
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
Large Intestine
The ileocecal sphincter, a mucous membrane fold, guards the opening from the ileum to the large intestine. This valve permits material from the small intestine to pass into the large intestine. Attached to the ileocecal valve is the cecum. This small pouch, approximately 6 cm long, has a twisted, coiled tube known as...
Endoscopic Procedures II: Colonoscopy
Renewal of Intestinal Stem Cells

