Which structure attaches to the lateral supracondylar ridge of the femur?

Which structure attaches to the lateral supracondylar ridge of the femur?

• A. Plantaris
• B. Lateral head of gastrocnemius
• C. Oblique popliteal ligament
• D. Medial head of gastrocnemius

Answer: (B)

The lateral supracondylar ridge serves as the origin for the plantaris muscle. The plantaris originates from the inferior end of that lateral supracondylar line, and its long tendon runs down between the gastrocnemius and soleus to join the Achilles tendon. This makes it the structure attached to that specific bony ridge. In contrast, the gastrocnemius heads arise from the femoral condyles and nearby posterior surfaces, not from the lateral supracondylar ridge, and the oblique popliteal ligament is a reinforcing structure of the knee capsule arising from the semimembranosus area, not from this bony ridge.

The lateral supracondylar ridge serves as the origin for the plantaris muscle. The plantaris originates from the inferior end of that lateral supracondylar line, and its long tendon runs down between the gastrocnemius and soleus to join the Achilles tendon. This makes it the structure attached to that specific bony ridge.

In contrast, the gastrocnemius heads arise from the femoral condyles and nearby posterior surfaces, not from the lateral supracondylar ridge, and the oblique popliteal ligament is a reinforcing structure of the knee capsule arising from the semimembranosus area, not from this bony ridge.