Which muscle originates from the lateral condyle of the tibia and anterior surface of the fibula?

Which muscle originates from the lateral condyle of the tibia and anterior surface of the fibula?

• A. Extensor Digitorum Longus
• B. Fibularis Longus
• C. Tibialis Anterior
• D. Vastus Medialis

Answer: (A)

Matching muscle origins to bone surfaces helps you identify which muscle fits the description. Extensor Digitorum Longus has a distinctive origin on both bones of the lower leg: the lateral condyle of the tibia and the anterior surface of the fibula (plus the interosseous membrane). That dual-origin pattern is a hallmark of this muscle and aligns with its role in extending the toes and dorsiflexing the foot, placing it in the anterior compartment of the leg. The other muscles come from different sites: Fibularis Longus originates from the fibula only, Tibialis Anterior originates from the tibia (and interosseous membrane) but not the fibula’s anterior surface, and Vastus Medialis originates from the femur. So the described origin clearly points to Extensor Digitorum Longus.

Matching muscle origins to bone surfaces helps you identify which muscle fits the description. Extensor Digitorum Longus has a distinctive origin on both bones of the lower leg: the lateral condyle of the tibia and the anterior surface of the fibula (plus the interosseous membrane). That dual-origin pattern is a hallmark of this muscle and aligns with its role in extending the toes and dorsiflexing the foot, placing it in the anterior compartment of the leg. The other muscles come from different sites: Fibularis Longus originates from the fibula only, Tibialis Anterior originates from the tibia (and interosseous membrane) but not the fibula’s anterior surface, and Vastus Medialis originates from the femur. So the described origin clearly points to Extensor Digitorum Longus.