Interosseous membrane of the leg
Encyclopedia
The interosseous membrane of the leg (middle tibiofibular ligament) extends between the interosseous crests of the tibia
and fibula, 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 lamina 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, 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.
Tibia
The tibia , shinbone, or shankbone is the larger and stronger of the two bones in the leg below the knee in vertebrates , and connects the knee with the ankle bones....
and fibula, 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 lamina 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
Tibiofibular joint
Tibiofibular joint may refer to:* Superior tibiofibular articulation* Inferior tibiofibular articulation...
, 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
Interosseous ligament
A Interosseous ligament can refer to:* Dorsal intertarsal ligaments* Interosseous ligaments of tarsus* Bifurcated ligament* Interosseous sacroiliac ligament* Interosseous intercarpal ligaments* Interosseous intercuneiform ligaments...
of the tibiofibular syndesmosis, 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.