Which structure is NOT part of the boundaries of the femoral triangle?

The femoral triangle is an important anatomical region located in the anterior superior thigh, primarily involved in the passage of neurovascular structures to the lower limb. It is defined by three main boundaries: the inguinal ligament forms the superior border, the sartorius muscle constitutes one lateral border, and the adductor longus muscle serves as the medial border. Additionally, the pectineus muscle forms part of its floor.

The biceps femoris, being part of the hamstring group found at the posterior aspect of the thigh, does not contribute to the boundaries of the femoral triangle. Its location and orientation are distinct from those muscles that delineate the anatomical space of the femoral triangle. Understanding these boundaries is crucial for surgical approaches and understanding lower limb anatomy and function.