The ankle is a large joint made up of three bones:
The bony bumps (or protrusions) seen and felt on the ankle have their own names:
The ankle joint allows up-and-down movement of the foot. The subtalar joint sits below the ankle joint, and allows side-to-side motion of the foot. Numerous ligaments (made of tough, moveable tissue) surround the true ankle and subtalar joints, binding the bones of the leg to each other and to those of the foot.