The shin bone larger bone of the lower leg, correctly called the 'tibia'.

bones of knee, including tibia
The tibia, or shin bone, articulates with the femur in the knee. Outside of the joint capsule, it also articulates with the skinny fibula bone, and the lower end of the tibia forms part of the ankle.

Dr Sheila StroverĀ (Editor)
BSc (Hons), MB BCh, MBA

See biography...