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Knee Muscles OIA
Question | Answer |
---|---|
Rectus Femoris | O: AIIS, posterior groove above acetabulum I: Tibial tuberosity A: knee flexion |
Vastus Intermedius | O: upper 2/3, anterior femur I: Tibial tuberosity A: knee extension |
Vastus Lateralis | O: Interotrochanteric line, ant/inf greater trochanter, gluteal tuberosity, upper 1/2 of linea aspera I: Tibial tuberosity A: knee extension |
Vastus Medialis | O: linea aspera, medial condyloid ridge I: Tibial tuberosity A: knee extension |
Popliteus | O: posterior, lateral condyle of femur I: superior, posterior, medial tibia A: knee flexion, unlocks knee joint (internally rotates tibia) |
Biceps Femoris | O: long head: ischial tuberosity, short head: lower ½ of linea aspera I: fibular head, lateral condyle of tibia A: knee flexion |
Semitendinosus | O: ischial tuberosity I: postermedial tibial condyle A: knee flexion |
Semimembranosus | O: ischial tuberosity I: pes anserine A: knee flexion |