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Insertions, origins, and actions of Thigh, Hip, Pelvis, and Groin

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Muscle
Insertion, Origin, Action
Sartorius   I: Pes aserine; O: Anterior superior iliac spine; A: flex knee, IR knee, ER hip, flex hip, abduct hip  
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Rectus Femoris   I: Tibial Tuberosity ; O:anterior inferior iliac spine; A:hip flexion, knee extension  
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Vastus Medialis   I: Tibial Tuberosity; O:Intertrochanteric line & linea aspera; A:knee extension  
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Vastus Lateralis   I: Tibial Tuberosity ; O:Intertrochanteric line & linea aspera: A:knee extension  
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Vastus Intermedius   I: Tibial Tuberosity; O:Intertrochanteric line; A: knee extension  
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Popliteus   I: posterior medial tibial condyle; O: lateral femoral condyle; A:knee flexion  
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Semimembranosus   I:posterior medial tibial condyle; O:Ischial Tuberosity; A: flex knee, extend hip  
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Semitendinosus   I: Pes anserine; O: Ischial Tuberosity; A:flex knee, extend hip  
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Biceps Femoris   Long Head: insertion at ischial tuberosity, origin at fibular head, action is to extend hip, flex knee Short Head: insertion at 2/3 down the femur, origin at fibular head, action is to flex knee  
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Gracilis   I: Pes aserine, O: pubic ramus; A:hip adduction, flex knee, IR(internally rotate) hip  
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Pectineus   I: pectineal line of the femur; O: pectineal line of the pubis; A: flex and adduct thigh  
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Adductor Magnus   I: linea aspera & adductor tubercle; O: pubic ramus & ischial tuberosity; A: one part - extends thigh; other part - flexes & adducts thigh  
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Adductor Longus   I: linea aspera (mid 1/3); O: pubic body; A: adducts thigh  
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Adductor Brevis   I: pectineal line & linea aspera; O: body & inferior pubic ramus; A: adducts thigh  
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Iliacus   I: lesser trochanter; O: iliac fossa; A: hip flexion  
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Psoas   I: lesser trochanter; O: T12-L5 vertebrae; A: hip flexion  
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Tensor Fascia Lata   I: Gerdy's Tubercle (via IT band); O: anterior iliac crest; A: abducts, flexes, IR thigh  
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Gluteus Maximus   I: Gluteal tuberosity of femur; IT band; O: ilium, dorsal sacrum; A: Extends and ER(externally rotate) thigh  
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Gluteus Medius   I: greater trochanter (posterior); O: ilium; A: abducts thigh, IR of the thigh  
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Gluteus Minimus   I: anterior surface of the greater trochanter; O: ilium; A: abducts and IR thigh  
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Created by: babygothack
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