9/28/2023 0 Comments Anterior compartment of leg nerveSeven tarsal bones make up the ankle joint Site of attachment of numerous leg muscles.Important landmark: A notch at the superior end permits the anterior tibial vessels to enter the anterior compartment of the leg.Distal tibiofibular joint: fibrous joint ( syndesmosis) between the distal ends of the tibia and fibulaįibrous connective tissue that extends between the medial border of the fibula and the lateral border of the tibia.Proximal tibiofibular joint: synovial joint between the head of the fibula and the lateral tibial condyle.Lateral malleolus: inferolateral projection of the distal end of the fibula.Common peroneal nerve wraps around on the neck of the fibula.A constriction between the head and the shaft of the fibula.A component of the proximal tibiofibular joint.Site of attachment of the lateral collateral ligament of the knee and the biceps femoris muscle.Lateral bone of the leg non-weight bearing Site of attachment of lower extremity muscles.Articulates with the fibula proximally and distally.Articulates with the talus to form a portion of the ankle joint.Articulates superiorly with the femoral condyles to form the knee joint.Medial malleolus: inferomedial projection of the distal end of the tibia.Shaft: has 3 surfaces ( anterior, lateral, and posterior).Clinical significance: Osgood Schlatter disease.Site of attachment of the patellar tendon.A rough triangular area on the anterior aspect of the tibia, where the condyles merge.Tibial condyles: horizontal upper surface of the tibia with medial and lateral depressions that articulate with the femoral condyles.These are drained by superficial ( great saphenous vein, small saphenous vein) and deep veins ( anterior tibial vein, posterior tibial vein, fibular vein). The leg, ankle, and foot are perfused by the anterior and posterior tibial arteries, fibular artery, and their branches. The intrinsic muscles of the foot are responsible for fine movements of the foot, which include flexion and extension at the MTP and IP joints as well as abduction and adduction of toes. The lateral compartment (peroneal or fibular compartment), which is innervated by the superficial peroneal nerve, contains muscles involved in foot eversion and ankle plantarflexion. The posterior compartment (flexor compartment), which is innervated by the tibial nerve, contains muscles involved in ankle plantarflexion, foot inversion, and knee flexion. The anterior compartment (extensor compartment), which is innervated by the peroneal nerve, contains muscles involved in ankle dorsiflexion and foot eversion. The leg (crus) has an anterior, posterior, and lateral compartment. The foot has one transverse and two longitudinal arches that help distribute body weight. The foot consists of 5 metatarsal bones, the phalanges, metatarsophalangeal ( MTP), and interphalangeal (IP) joints. The talus also articulates with the calcaneus inferiorly forming the subtalar joint and with the navicular anteriorly forming the talonavicular joint. The ankle joint (talocrural joint) is formed by the articulation of the talus with the tibia and fibula. The tarsal bones include the calcaneus, talus, cuboid, navicular bones, and the medial, middle, and lateral cuneiform bones. The leg (crus) extends from the knee to the ankle and contains the tibia and fibula. The lower extremity consists of the hip, thigh, knee, and popliteal fossa, as well as the leg (crus), ankle, and foot.
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