The articular surface of the higher end of the femur

Femur

The femur , or thigh bone, is the most proximal bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in...

 consists of the anterior, inferior, and posterior surfaces of the condyles. Its front part is named the patellar surface and articulates with the patella; it presents a median groove which extends downward to the intercondyloid fossa

Intercondyloid fossa

Intercondyloid fossa can refer to:* Anterior intercondyloid fossa* Posterior intercondyloid fossa* Intercondylar fossa of femur...

and two convexities, the lateral of which is broader, more prominent, and extends farther upward than the medial.