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Leg Muscles

positions and actions of leg muscles

QuestionAnswer
Sartorius POSITION:crosses over from hip to medial side of knee ACTION: flexes hip&knee, rotates femur laterally
Flexor Digitorum Longus POSITION: deep to soleus ACTION: flexes toes
Tendon of Achilles POSITION: posterior aspect of lower leg; continuation of soleus/gastrocnemius to heel of foot ACTION: plantarflexes foot
Peroneus Longus POSITION: anterior and lateral side of leg ACTION: everts and plantarflexes foot, supports ankle
Soleus POSITION: deep to gastrocnemius ACTION: plantarflexes ankle walking
Gastrocnemius (calf muscle) POSITION: posterior aspect of lower leg, joins with soleus to form tendon of achilles ACTION: plantarflexes ankle
Gracilis POSITION: medial aspect of thigh ACTION: adducts and rotates femur medially, flexes knee
Vastus lateralis POSITION: front of thigh laterally ACTION: extends knee
Adductor Magnus POSITION: medial and slightly anterior aspect of thigh ACTION: adducts femur
Semimembranosus POSITION: underneath semitendinosus on medial aspect of back of thigh ACTION: flexes knee, extends hip
Semitendinosus POSITION: lies on top of semimembranosus ACTION: flexes knee, extends hip
Biceps Femoris POSITION: lateral side back of thigh ACTION: flexes knee joint and extends hip
Adductor Brevis POSITION: medial side of femur ACTION: adducts femur
Adductor Longus POSITION: Medial side of upper femur ACTION: adducts femur
Vastus Intermedius(under rectus femoris) POSITION: Front of Thigh ACTION: Extends knee
Rectus Femoris POSITION: front of thigh ACTION: extends knee and flexes hip
Vastus Medialis POSITION: medial and front of thigh ACTION: extends knee
Tibialis Anterior POSITION: lateral front of lower leg ACTION: dorsiflexes and inverts the foot
Extensor Digitorum Longus POSITION: anterior aspect of lower leg ACTION: extends toes
Gracilis POSITION: medial aspect of thigh ACTION: adducts and rotates femur medially, flexes knee
Created by: smyleekim