Generality
The tibia is the even bone, which together with the fibula (with respect to which it is in a medial position), constitutes the skeleton of each leg.
To simplify the study, anatomists divide it into three portions: the proximal end (or proximal epiphysis), the body (or diaphysis) and the distal end (or distal epiphysis).
The proximal end is the portion closest to the femur and which makes up the knee.
The body is the portion between the proximal epiphysis and the distal epiphysis; it has the task of accommodating different muscles of the leg and foot.
Finally, the distal end is relevant for its union with the talus, one of the seven tarsal bones of the foot.
So is the Tibia
The tibia is the even bone which, together with the fibula (other even bone), forms the skeleton of each leg.
As a leg bone, it resides between the femur (thigh bone), above, and the talus (foot bone), below, and develops longitudinally.
Both between the tibia and the femur and between the tibia and the foot, there is a joint: in the first case, it is the knee joint; in the second case, it is the ankle joint.
Belonging to the category of long bones, the tibia is the second longest bone in the human skeleton, after the femur.
LOCATION WITH RESPECT TO PEOPLE
The tibia develops along the inner side of the fibula. With reference to the sagittal plane, this means that the tibia is medial to the fibula and the fibula is lateral to the tibia.
An explanation of the sagittal, lateral and medial plane concepts is provided in the box below.
