Final answer:
The femoral triangle is the superficial region between the femur and the calf, which contains structures such as the femoral nerve and femoral artery.
Step-by-step explanation:
The superficial region located between the femur and the sura is known as the femoral triangle. This area is formed at the junction between the hip and the leg and includes several important structures such as the pectineus, femoral nerve, femoral artery, femoral vein, and deep inguinal lymph nodes. When considering the anatomy of the lower limb, the femur is the thigh bone, while the sura refers to the calf, where the tibia and fibula are located. The femoral triangle is the superficial region between the femur and the calf, which contains structures such as the femoral nerve and femoral artery.