What is the lateral malleolus?

The lateral malleolus refers specifically to the distal end of the fibula, which is one of the two bones in the lower leg. It is located on the outer side of the ankle and serves both as a bony prominence that can be felt and as an important structure in stabilizing the ankle joint.

In the context of anatomy, recognizing the position and role of the lateral malleolus is crucial, especially when discussing injuries or conditions related to the ankle. The lateral malleolus provides attachment points for ligaments that support the ankle, contributing to the overall stability of the joint during movement.

The other options provided refer to different anatomical structures that do not pertain to the lateral malleolus: the distal end of the femur is part of the thigh bone and relates to knee joint anatomy, the articulation at the knee joint specifies connections relevant to the knee itself, and the bone in the forearm pertains to the radius or ulna. Each of these has distinct functions and locations that are separate from the lateral malleolus.