Which region pertains to the leg proper?

The crural region pertains specifically to the leg proper, which is commonly understood to be the area between the knee and the ankle. This term is used in anatomical terminology to precisely describe the lower part of the leg.

The femoral region refers to the thigh, which is located above the knee. The popliteal region relates to the back of the knee, serving as a transition area rather than being considered part of the leg itself. The tarsal region refers to the ankle area, which is situated at the distal end of the leg. Since the question specifically asks about the leg proper, the crural region is the most accurate descriptor of the area between the knee and the ankle.