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DukePALegMuscles

Leg Muscles

QuestionAnswer
Gastrocnemius Flex knee and plantarflex ankle
Soleus Plantarflex ankle Does not cross knee
Plantaris Weakly flex knee, plantarflex ankle
Calcaneal Tendon Achilles Tendon - gastrocnemius, soleus and plantaris come together to form this
What innervates Gastrocnemius, Soleus and Plantaris? Tibial Nerve
Popliteus Unlocks knee from extended position (Rotates femur laterally)
Flexor Digitorum Longus Plantar Flex Ankle Flex digits 2-5
Flexor Hallucis Longus Weakly plantar flex ankle Flex big toe
Tibialis Posterior Plantar flex ankle Invert Foot
Popliteal Artery splits into: Anterior Tibial Artery and Posterior Tibial Artery
Sciatic Nerve splits into what nerves in the popliteal fossa? Tibial and Common Fibular Nerves
What movements does the muscles of the anterior compartment of the leg make? Dorsiflex foot, extend toes, invert foot. Innervations: Deep Fibular Nerve
What movements does the muscles of the lateral compartment of the leg make? Evert foot Innervation: Superficial Fibular Nerve
Tibialis Anterior Dorsiflex Ankle Invert Foot Support medial arch of foot
Extensor Hallucis Longus Extend hallux (big toe), dorsiflex ankle
Extensor Digitorum Longus Dorsiflex ankle, extend digits 2-5
Fibularis Longus Runs across the sole of the foot to insert of base of first metatarsal
Fibularis Brevis Inserts on base of 5th metatarsal
Lateral leg muscles are innervated by what? Superficial Fibular Nerve
What does the superficial fibular nerve branch innervate? Lateral Compartment of Leg
What does the deep fibular nerve branch innervate? Anterior Compartment of the leg
Created by: alison.simpson