What is the articulation site for the femur?

The head of the femur articulates with the acetabulum of the ilium or hip bone, and the lower end of the femur articulates with the tibia and patella (shin bone and kneecap).

The femur is the thigh bone. It extends from the hip to the knee.

An articulation is an area where two bones are attached for movement.

Thus, the femur has two articulations.

The head of the femur articulates with the acetabulum of the ilium or hip bone.

The lower end of the femur articulates with the tibia and kneecap.