The two bones next to the femur are the tibia-fibula. The inner thick and large bone is called the tibia. The tibia is a tricuspid bone. Its edges are called ridges. At its upper end there are 2 condyles, 1 inflation, 2 connecting floors and 1 tuberosity. The lower extremity has 2 elevated parts called malleolus.
The outer thin and slender bone is called the fibula. The fibula looks like a long hexagon. Its head is open. It has the conjunctiva at its upper end and the malleolus at its lower end.