Fibula

Definition

The fibula is a long, slender bone located on the lateral side of the tibia in the lower leg. It plays a critical role in stabilizing the ankle and supporting muscles of the lower leg.

Related terms

Tibia:

The larger bone in the lower leg that bears most of the body's weight and articulates with both the knee and ankle joints.

Ankle joint: A complex joint where the tibia, fibula, and talus meet, allowing for foot movements such as plantarflexion and dorsiflexion.

Ligaments:

Fibrous connective tissues that connect bones to other bones, providing stability to joints; several ligaments around the ankle connect to or are supported by the fibula