The ligament of Treitz is present at the

BSF Staff Nurse - 2015

Applied Anatomy

Easy

Appeared in: BSF Staff Nurse - 2015

Explanation

The Ligament of Treitz, also known as the suspensory muscle of the duodenum, is a fibromuscular band of tissue.
As shown in the image and confirmed by anatomical texts, it attaches the end of the duodenum (the fourth part) to the diaphragm and surrounding structures.
Its point of attachment marks the duodenojejunal junction, the precise point where the duodenum ends and the jejunum (the next part of the small intestine) begins.
This ligament is a critical surgical and radiological landmark that formally divides the gastrointestinal tract into upper and lower segments.

Option A: The gastroduodenal junction is the point where the stomach (pylorus) connects to the first part of the duodenum. The Ligament of Treitz is located much further down the GI tract.
Option C: The ileocecal junction is where the final part of the small intestine (ileum) joins the first part of the large intestine (cecum). It is located in the lower right abdomen.
Option D: The colorectal junction, or rectosigmoid junction, is the point where the sigmoid colon joins the rectum, located deep within the pelvis.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomical location and clinical significance of the Ligament of Treitz as background academic context rather than a clinical decision trigger.
The Ligament of Treitz is the key landmark for classifying gastrointestinal (GI) bleeding. Bleeding originating above this ligament is an 'upper GI bleed' (often causing melena or hematemesis), while bleeding below it is a 'lower GI bleed' (often causing hematochezia).
During abdominal surgery, surgeons use the ligament to identify the duodenojejunal junction, which is essential for procedures involving the small bowel, such as resections or bypasses.
What if? If a patient has bright red blood per rectum (hematochezia), it usually suggests a lower GI bleed. However, if the bleeding is massive and rapid (a brisk upper GI bleed), blood can transit through the intestines so quickly that it doesn't have time to be digested and still appears as red blood, mimicking a lower GI source.

How to Approach the Question

First, identify the core anatomical structure in the question: 'Ligament of Treitz'.
This is a factual recall question. Access your knowledge of abdominal anatomy.
Visualize the path of the upper GI tract: Stomach → Duodenum → Jejunum.
Recall that the duodenum is a C-shaped structure that transitions into the jejunum. The Ligament of Treitz is the specific structure that suspends this transition point.
Evaluate the options: 'Duodenojejunal junction' directly matches this anatomical location. The other options (gastroduodenal, ileocecal, colorectal) represent different, distinct junctions in the GI tract.

Concept Tested & Keywords

Concept Tested: Anatomical location and clinical significance of the Ligament of Treitz.
Stem keywords: Ligament of Treitz, present at
Lead-in keywords: BEST, MOST RELEVANT CLUE
Negative lead-in flag: false

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E6 Anatomy BDChaurasia V2 10e Part 2 pp. 37-39, 38-40