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lower leg muscles
origin insertion and actions - gym instructor
Muscles of leg | Origin | Insertion | Action |
---|---|---|---|
Gastrocnemius | Femur | Achilles tendon into the heel bone | Ankle Plantar flexion Knee flexion |
Soleus | tibia & fibula | achilles tendon into the heel bone | ankle plantar flexion |
tibialis anterior | tibia | inside of the foot | ankle dorsi flexion |
bicep femoris | ischium & femur | tibia and fibula | knee flexion and hip extension (move thigh to rear) |
rectus femoris | ilium | via the patella tendon to the tibia | hip flexion and knee extension |
vastus intermedialis/vastus medialis/ vastus lateralis | femur | via the patella tendon to the tibia | knee extension |
semi-tendinosus & semi-membranosus | ischium | tibia | hip extension & knee flexion |
tensor fascia latae (outside of upper leg) | ilium | tibia | hip flexion * abduction |