## Boundaries of the Femoral Triangle The femoral triangle is a superficial triangular space in the upper medial thigh with three well-defined borders: | Border | Structure | | --- | --- | | **Lateral** | Sartorius muscle | | **Medial** | Adductor longus muscle | | **Superior** | Inguinal ligament | | **Floor** | Iliopsoas, pectineus, adductor longus | **Key Point:** The adductor longus forms the medial boundary and is a key landmark for identifying the triangle's medial extent. It originates from the pubis and runs inferolaterally. **High-Yield:** The femoral triangle is clinically important because it contains the femoral artery, vein, and nerve (from lateral to medial: **VAN** — Vein, Artery, Nerve). The adductor longus medial border helps demarcate the safe zone for femoral access procedures. **Clinical Pearl:** During femoral artery puncture, the needle is inserted lateral to the adductor longus to avoid the vein and to achieve optimal arterial access. 
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