The interosseous membrane of the leg (middle tibiofibular ligament) extends between the
interosseous crests of the
tibia
The tibia (; : tibiae or tibias), also known as the shinbone or shankbone, is the larger, stronger, and anterior (frontal) of the two Leg bones, bones in the leg below the knee in vertebrates (the other being the fibula, behind and to the outsi ...
and
fibula
The fibula (: fibulae or fibulas) or calf bone is a leg bone on the lateral side of the tibia, to which it is connected above and below. It is the smaller of the two bones and, in proportion to its length, the most slender of all the long bones. ...
, helps stabilize the Tib-Fib relationship and separates the muscles on the front from those on the back of the leg.
It consists of a thin, aponeurotic joint
lamina
Lamina may refer to:
People
* Saa Emerson Lamina, Sierra Leonean politician
* Tamba Lamina, Sierra Leonean politician and diplomat
Science and technology
* Planar lamina, a two-dimensional planar closed surface with mass and density, in mathem ...
composed of oblique fibers, which for the most part run downward and lateralward; some few fibers, however, pass in the opposite direction.
It is broader above than below. Its upper margin does not quite reach the
tibiofibular joint, but presents a free concave border, above which is a large, oval aperture for the passage of the
anterior tibial vessels to the front of the leg.
In its lower part is an opening for the passage of the
anterior peroneal vessels.
It is continuous below with the
interosseous ligament of the tibiofibular
syndesmosis
A syndesmosis (“fastened with a band”) is a type of fibrous joint in which two bones are united to each other by fibrous connective tissue. The gap between the bones may be narrow, with the bones joined by ligaments, or the gap may be wide a ...
, and presents numerous perforations for the passage of small vessels.
It is in relation, in front, with the Tibialis anterior, Extensor digitorum longus, Extensor hallucis proprius, Peronæus tertius, and the anterior tibial vessels and deep peroneal nerve; behind, with the Tibialis posterior and Flexor hallucis longus.
Additional images
Image:Gray258.png, Bones of the right leg. Anterior surface.
Image:Gray346.png, Right knee-joint. Posterior view.
Image:Gray551.png, The popliteal, posterior tibial, and peroneal arteries.
File:Slide1besa.JPG, Knee and tibiofibular joint. Deep dissection. Anterior view.
File:Slide2besa.JPG, Knee and tibiofibular joint. Deep dissection. Anterior view.
File:Slide1dede.JPG, Knee, tibiofibular and ankle joints. Deep dissection. Anterolateral view.
File:Slide2dede.JPG, Knee, tibiofibular and ankle joints. Deep dissection. Anterolateral view.
References
External links
Diagrams at massagetherapy.com
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Lower limb anatomy