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Leg Muscles
positions and actions of leg muscles
| Question | Answer |
|---|---|
| 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 |