Front | Back |
Bony structures of knee joint
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Femur, tibia, fibula, patella
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Ligaments of knee joint
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Medial, lateral and cruciate (ACL,PCL)
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Tendon of quadriceps end in the patellar tendon at the_____
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Tibial tuberosity
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Menisci
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Two fibrocartilage discs that sit on the tibial plateau, prevent side to side shifting of the femur, absorb shock in the knee joint
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Bursae of the knee
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Around 20, sacks of synovial fluid that helps joint move freely
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Illiotibial band
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Connects to pelvis, supports pelvis on femur and connects to tibia
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Is rotation possible in the knee joint?
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Very little when knee is flexed and not at all when knee is locked
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Closure rotation
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What happens when knee finally locks, femur rotates medially with respect to the tibia when locked during extension
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Primary anterior muscle acting on the knee
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Quadriceps group (during extension)
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Quadriceps group
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Rectus femoris All action: knee extention
vastus medialis
vastus intermedials
vastus laterais
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Primary posterior muscles acting on the knee during flexion
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Hamstring group:
biceps femoris
semitendoniosus
semimenmbranosus
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Popliteus
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Key for knee joint stability, short diagonal muscle
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Pes anserinus (goose foot muscle)
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Comprised of sartorious, gracillis and semitendinosus all three muscles attach to the medial tibia
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Patella
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Small pan
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Poping in the knee
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Joint is being reactiviated after a period of rest synovial membrane creates synovial fluid to lubricate joint
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