Popliteus muscle

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Description:

Origin:
Popliteal groove on the lateral surface of the lateral condyle of the femur, the lateral side of the lateral meniscus, and the arcuate popliteal ligament of the joint capsule of the knee

Insertion:
Triangular posterior surface of the tibia above the soleal line

Actions:
Medially rotates the tibia and unlocks the hyperextended knee

Nerve supply:
Tibial nerve

Blood supply:
Branches of the popliteal and posterior tibial artery