Which of the following is NOT a border of the femoral triangle?

Question

BlackTom AI · Accepted Answer

To tackle this question, I’ll first recall the anatomical boundaries of the femoral triangle. 
Option 1: sartorius m. — This muscle forms the lateral boundary of the femoral triangle, stretching obliquely across the thigh. Its position as a border is well established, so this statement aligns with standard anatomy. 
Option 2: iliopsoas m. — The iliopsoas is primarily a muscle of the hip and forms part of the floor of the femoral triangle rather than its border. Therefore, it is not a border of the triangle, making this option consistent with the idea of something not forming a border. 
Option 3: inguinal ligament — This fibrous band runs from the ASIS to the pubic tubercle and constitutes the superior border of the femoral triangle. It is a classic and essential border, so this option correctly identifies a border. 
Option 4: adductor longus m. — The adductor longus forms the medial boundary of the femoral triangle. As such, it is indeed a border, matching the typical description of the triangle’s medial edge. 
Option 5: gracilis m. — The gracilis runs medially in the thigh but does not define the borders of the femoral triangle; it lies more inferiorly and medially, not forming a boundary of the triangle itself. This makes it another structure that is not a border in the conventional description. 
In comparing these, there is a mix of border and non-border identifications across the options, with sartorius, inguinal ligament, and adductor longus being borders, while iliopsoas and gracilis are not borders of the femoral triangle in the standard anatomical description. The key distinction hinges on whether the structure forms a boundary (border) of the triangle or lies in a neighboring region such as the floor or medial compartment.

Which of the following is NOT a border of the femoral triangle?单项选择题

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