Tibia
Wikipedia, the free encyclopedia - Cite This SourceThe tibia or shinbone is the larger of the two bones in the leg below the knee in vertebrates.
In humans
The tibia is found medial and anterior to the fibula. It is the second-longest bone in the human body, the largest being the femur. The tibia articulates with the femur and patella superiorly, the fibula laterally and with the ankle inferiorly.Gender differences
In the male, its direction is vertical, and parallel with the bone of the opposite side. In the female, it has a slightly oblique direction downward and lateralward, to compensate for the greater obliquity of the femur.Structure
It is prismoid in form, expanded above, where it enters into the knee-joint, contracted in the lower third, and again enlarged but to a lesser extent below.The tibia is connected to the fibula by an interosseous membrane, forming a type of joint called a syndesmoses.
Blood supply
The tibia derives its arterial blood supply from two sources:- the nutrient artery (main source)
- periosteal vessels derived from the anterior tibial artery
Additional images
See also
- Articulations between the tibia and fibula
- Bone terminology
- Terms for anatomical location
- Ossification of tibia
- Upper extremity of tibia
- Body of tibia
- Lower extremity of tibia
- Shin Splints
External links
References
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Last updated on Tuesday March 11, 2008 at 13:53:15 PDT (GMT -0700)
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