What process makes up the outer ankle ""bone""?" lateral epicondyle of tibia medial malleolus of tibia head of the fibula lateral malleolus of fibula

The "bone" you are referring to as the outer ankle is known as the lateral malleolus, which is a prominent part of the fibula. The lateral malleolus is located on the outer side of the ankle and plays a critical role in the stability and structure of the ankle joint.

To provide clarity:

1. Lateral Epicondyle of Tibia: This is a bony prominence on the outer part of the tibia but does not form part of the ankle structure.
2. Medial Malleolus of Tibia: This is a similar structure located on the inner side of the ankle, formed by the tibia.
3. Head of the Fibula: This is the upper part of the fibula, located near the knee, and does not contribute to the ankle structure directly.
4. Lateral Malleolus of Fibula: This is the bone you are inquiring about; it extends down from the fibula to form the outer aspect of the ankle joint.

In summary, the outer ankle "bone" is primarily formed by the lateral malleolus of the fibula.