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

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



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