Identify #1? This is a tiny pit on the head of the femur which allows for the attachment of a ligament called the "ligament of the head of the femur."

Identify #2? This is the large ball-like structure on the superior portion of the femur. It helps to form the ball and socket synovial joint with the acetabulum of the hip bone.

Identify #15? This portion of the femur attaches the head to the shaft. It is surrounded by the joint capsule of the hip.

Identify #9? It is a smaller bony protuberance and is located more medially on the posterior region of the femur and it allows for the attachment of muscles such as the psoas major and iliacus.

Identify #10? It is a larger bony protuberance and is located laterally on the femur. It allows for the attachment of muscles such as the piriformis, gluteus medius, gluteus minimus and vastus lateralis.

Identify #16? It allows the attachment of the fibular collateral ligament of the knee.

Identify #7? It is located above the medial condyle. It provides attachment of the adductor magnus and gastrocnemius muscles.

Identify #14? This is found on the anterior surface of the femur. It is a smooth depression that provides articulation with the patella bone (also called the kneecap).

Identify #12? This is a small bump that rests on the top of the medial condyle, which allows the insertion of the tendon of the adductor magnus.