Final answer:
The medial wall of the femoral triangle is formed by the adductor longus muscle and contains critical structures like the femoral nerve, artery, vein, and deep inguinal lymph nodes.
Step-by-step explanation:
The medial wall of the femoral triangle is constituted by the adductor longus muscle, which rises from the pelvis and inserts into the femur. An important anatomical region located in the upper thigh, the femoral triangle contains key structures such as the femoral nerve, artery, and vein, alongside deep inguinal lymph nodes. It is bounded by the sartorius muscle laterally, the inguinal ligament superiorly, and the medial border is formed by the adductor longus muscle.