carbon. 1  Chemistry. a widely distributed element that forms organic compounds in combination with hydrogen, oxygen, etc., and that occurs in a pure state as diamond and graphite, and in an impure state as charcoal.
The tibia and fibula are the two long bones in the lower leg. They are closely linked at the knee and ankle, but they are two separate bones. â¢ The tibia is the bone that forms the shin and is the larger of the two. lower-leg bones. â¢ The top of the tibia connects to the knee joint and the bottom of the tibia. connects to the ankle joint.
Fractures of the lower end of the tibia and fibula are covered in ankle fractures. Fractures of the upper end of the tibia are covered in knee fractures.The tibia bone is the largest and most important bone of the lower leg. It is quite vulnerable to injury.n the case of an isolated fracture of the fibula you may be able to walk, but with nearly all other fractures it is impossible to bear weight. Within a few minutes of the injury the leg will swell up. If there have been injuries to the nerves or arteries the foot may be numb or cold.