vastnj.blogg.se

Lateral CompartmentMuscles:PeroneusLongusPeroneusBrevis Lateral CompartmentBlood supply: No major arteries in lateral compartment.Muscular branches arise from the peroneal artery (Branch of posterior tibial).Nerve supply:Superficial peroneal (fibular) nerve

Lateral CompartmentLateral compartment contains the muscles that Everters of the foot (turns foot outward)Contains the superficial peroneal nerve The LegThe leg is divided into four compartmentsAnterior compartmentLateral compartment(Superficial) Posterior compartmentDeep posterior compartmentĪnterior CompartmentAnterior compartment contains the muscles that dorsiflex the ankle and extend the toes.Contains Anterior Tibial NerveContains Anterior Tibial Artery.Īnterior CompartmentBlood supply:Anterior tibial artery.Innervation:Deep peroneal (fibular) nerve.Īnterior CompartmentThe muscles of the compartment are:Tibialis anteriorExtensor hallucislongusExtensor digitorumlongusFibularistertius (peroneustertius)Īnterior CompartmentTA:Tibialis anteriorEDL:Ğxtensor digitorumlongusEHL:Ğxtensor hallucislongusPT:PeroneustertiusĪnterior CompartmentTibialis anterior (TA) Origin -lateral condyle of tibia, upper half/lateral surface of tibia, interosseous membraneInsertion - medial cuneiform, base of 1st metatarsalNerve - deep fibular (peroneal) (L4-5)Action - ankle dorsiflexion, forefoot inversion Īnterior CompartmentExtensor DigitorumLongus (EDL)Origin - lateral condyle of tibia, ant surface of fibula, interosseous membraneInsertion - dorsum of base of middle phalanx, dorsum of base of distal phalanxNerve - deep fibular (peroneal) (L5-S1)Action - extension of toes, dorsiflexion of ankleĪnterior CompartmentExtensor HallucisLongus (EHL) Origin - middle ½ of ant fibula, IMInsertion - distal phalanx of the great toeNerve - deep fibular (peroneal) (L5-S1)Action - extend the great toe, dorsiflex ankleĪnterior CompartmentFibularis (Peroneus) TertiusOrigin - distal 1/3 ant fibula, interosseous membrane Insertion - dorsum shaft of 5th metatarsalNerve - deep fibular (peroneal) (L5-S1) Action - forefoot eversion, weak ankle dorsiflexion The LegIt is the portion between the knee and the ankle.It is comprised of two long bones (tibia –medially and fibula -laterally).