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Anatomy Synthesis

lower leg muscles

QuestionAnswer
Superior Tibiofibular Joint Flat facet of the fibular head and articular facet posteriolaterally on the lateral tibial condyle type:Plane synovial joint Motion: slight fibular movement w/ dorsiflexion
Tibiofibular syndesmosis Fibrous union of tibia and fibula by the interosseous membrane as well as the anterior, interosseous, and posterior ligaments. type: compound fibrous joint motion: same as superior joint
Anterior Compartment Muscles Tibialis Anterior, Extensor digitorum longus, Extensor hallicus longus, Fibularis tertius
Tibialis Anterior SA: lateral condyle and superior half of lateral surface of tibia and interosseous membrane DA: medial and inferior surfaces of medial cuneiform and base of 1st metatarsal N: Deep fibular nerve A: Dorsiflexes ankle and inverts foot
Extensor Digitorum Longus SA: lateral condyle of tibia and superior 3/4 of medial surface of fibula and interosseous membrane DA:Middle And Distal Phalanges Of Second Through Fifth Toes N: deep fibular nerve A:Extends Second Through Fifth Toes, Dorsiflexes Ankle, Everts Foo
Fibularis tertius SA: Inferior third of anterior surface of fibula and interosseous membrane DA: Dorsum of base of 5th metatarsal N: Deep Fibular nerve A: Dorsiflexes ankle and aids in eversion of the foot
Lateral crural compartment muscles Peroneus Brevis & Peroneus longus
Fibularis Longus SA:Proximal Two-Thirds Of Lateral Fibula DA:Base Of First Metatarsal And Medial Cuneiform N: superficial fibular nerve A:Everts Foot, Assists In Plantar Flexion Of Ankle
Fibularis Brevis SA:Distal Two-Thirds Of Lateral Fibula DA:Tuberosity Of Fifth Metatarsal N: superficial fibular nerve A: Everts Foot, Assists In Plantar Flexion Of Ankle
Gastrocnemius SA: Posterior Condyles Of Femur DA:Calcaneus Via Calcaneal Tendon N: tibial nerve A: Flex Knee, Plantar Flex Ankle
Plantaris SA:Lateral Epicondyle Of Femur DA:Calcaneus Via Calcaneal Tendon N: tibial nerve A:Weak Plantar Flexion Of Ankle
Soleus SA:Soleal Line And Posterior Surface Of Tibia, Proximal, Posterior Surface Of Fibula DA:Calcaneus Via Calcaneal Tendon N: tibial nerve A:Plantar Flex Ankle
Tibialis Posterior SA:Proximal Posterior Shaft Of Tibia, Proximal Fibula, Interosseous Membrane DA:Navicular, Cuneiform, Cuboid, Bases Of Second Through Fourth Metatarsals N: tibial nerve A: Inverts Foot, Plantar Flexes Ankle
Flexor digitorum longus SA:Middle Posterior Surface Of Tibia DA:Distal Phalanges Of Second Through Fifth Toes N: deep fibular nerve A:Flexes Second Through Fifth Toes, Inverts Foot, Weak Plantar Flexion Of Ankle
Flexor Hallucis longus SA:Middle Half Of Posterior Fibula DA:Distal Phalanx Of First Toe N: deep fibular nerve A:Flexes First Toe, Inverts Foot, Weak Plantar Flexion Of Ankle
Popliteus SA:Lateral Condyle Of Femur DA:Proximal, Posterior Aspect Of Tibia N: Tibial nerve A:Medially Rotates Flexed Knee, Flexes Knee
Posterior crural compartment muscles: Superficial layer Gastrocnemius, Plantaris, & Soleus
Deep posterior compartment muscles: Tibialis Posterior, Flexor digitorum longus, flexor hallicus longus, popliteus
Extensor hallicus longus SA:Middle Anterior Surface Of Fibula, Interosseous Membrane DA:Distal Phalanges Of First Toe N:deep fibular nerve A:Extends First Toe, Dorsiflexes Ankle, Inverts Foot
Created by: 74402267
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