Your fibula.
There are several bones in the Ankle. However, the one most commonly referred to as the "Ankle Bone" (the knob-like bone that protrudes out from where the ankle rotates) is called the Medial Malleolus.
The structure of the ankle is comprised of many bones, ligaments, and muscles ranging from above the calcaneous(Heel bone) and the top of the footdown to the toes. The "Ankle bone" (bone that protrudes out) is called the malleolus. Most people commonly confuse this for the ankle bone. when it is really one of many.
The tibia is the larger bone in the lower leg, connecting the knee to the ankle. The protrusion that can be felt just below the knee cap is known as the tuberosity.
DefinitionA protuberance is a body part that protrudes (bulges) outward from a surface.For example, the ankle is a protuberance of the leg. The ears protrude from the head.
it sticks out
sticks out
chicken
lateral pteregoid
India
reed
This is when your lip protrudes due to teeth.