Tibia

Template:Infobox Bone Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

The tibia is the larger of the two bones in the leg below the knee in vertebrates.

## Contents

* 1 In humans
* 1.1 Gender differences
* 1.2 Structure
* 1.3 Blood supply
* 2 Additional images
* 3 See also
* 4 External links
* 5 References

## In humans

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The tibia or shin bone, in human anatomy, is found medial (towards the middle) and anterior (towards the front) to the other such bone, 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

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In the male, its direction is vertical, and parallel with the bone of the opposite side, but in the female it has a slightly oblique direction downward and lateralward, to compensate for the greater obliquity of the femur.

### Structure

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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

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The tibia derives its arterial blood supply from two sources:[1]

1. the nutrient artery (main source)
2. periosteal vessels derived from the anterior tibial artery

## Additional images

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* Lower extremity

* Knee diagram

* Bones of the right leg. Anterior surface.

* Bones of the right leg. Posterior surface.

* Right knee-joint. Posterior view.

* Right knee-joint, from the front, showing interior ligaments.

* Left knee-joint from behind, showing interior ligaments.

* Sagittal section of right knee-joint.

* Capsule of right knee-joint (distended). Lateral aspect.

* Capsule of right knee-joint (distended). Posterior aspect.

* Capsule of left talocrura articulation (distended). Lateral aspect.

* Coronal section through right talocrural and talocalcaneal joints.

* Oblique section of left intertarsal and tarsometatarsal articulations, showing the synovial cavities.

* Cross-section through middle of leg.

## See also

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* 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

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* Tibial fractures

## References

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1. ↑ NELSON G, KELLY P, PETERSON L, JANES J. "Blood supply of the human tibia". J Bone Joint Surg Am. 42-A: 625–36. PMID 13854090.CS1 maint: Multiple names: authors list (link)

Template:Gray's

Template:Bones of lower extremity

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ca:Tíbia cs:Holenní kost de:Tibia (Wirbeltiere) eo:Tibio it:Tibia (osso) he:שוקה la:Tibia (os) lt:Blauzdikaulis nl:Scheenbeen no:Tibia nn:Tibia sl:Golenica fi:Sääriluu sv:Skenben tl:Lulod uk:Великогомілкова кістка Template:Jb1 Template:WH Template:WikiDoc Sources