Muscles of the Thigh PDF

# Muscles of the Thigh ## Loge antérieure | Muscles | Action | Origin (O); Insertion (I) | |---|---|---| | Grand psoas | Flexion of the thigh | O: Transverse processes and bodies of vertebrae T12 to L5 <br/> I: Lesser trochanter of the femur, with the iliacus | | Iliacus | Flexion of the thigh | O...

# Muscles of the Thigh ## Loge antérieure | Muscles | Action | Origin (O); Insertion (I) | |---|---|---| | Grand psoas | Flexion of the thigh | O: Transverse processes and bodies of vertebrae T12 to L5 <br/> I: Lesser trochanter of the femur, with the iliacus | | Iliacus | Flexion of the thigh | O: Iliac fossa <br/> I: Lesser trochanter of the femur, with the grand psoas | | Sartorius | Flexion and lateral rotation of the thigh; <br/> Flexion and medial rotation of the leg (crossing the leg) | O: Anterior superior iliac spine <br/> I: Medial side of the tibial tuberosity | | Droit fémoral | Flexion of the thigh <br/> Extension of the leg | O: Anterior inferior iliac spine <br/> I: Quadriceps tendon over the patella, then patellar ligament to the tibial tuberosity | ## Loge médiale de la cuisse (adducteurs) | Muscles | Action | Origin (O); Insertion (I) | |---|---|---| | Long adducteur | Adduction of the thigh; flexion of the thigh | O: Pubis near the pubic symphysis <br/> I: Linea aspera of the femur | | Short adducteur | Adduction of the thigh; flexion of the thigh | O: Inferior branch and body of the pubis <br/> I: Upper third of the linea aspera of the femur | | Gracile *gracilis* = slender | Adduction of the thigh; flexion of the leg | O: Inferior branch and body of the pubis <br/> I: Medial superior surface of the tibia | | Pectineus | Flexion of the thigh; adduction of the thigh | O: Pecten (pectineal line) of the pubis <br/> I: Pectineal line of the femur | ## Groupe fessier | Muscles | Action | Origin (O); Insertion (I) | |---|---|---| | Grand fessier | Extension of the thigh; <br/> Abduction and lateral rotation of the thigh | O: Iliac crest, sacrum, coccyx <br/> I: Iliotibial tract of the fascia lata; linea aspera and gluteal tuberosity of the femur | | Moyen fessier | Abduction and medial rotation of the thigh | O: Posterior iliac crest <br/> I: Greater trochanter of the femur | | Petit fessier | Abduction and medial rotation of the thigh | O: Lateral surface of the ilium <br/> I: Greater trochanter of the femur | ## Groupe des ischiojambiers | Muscles | Action | Origin (O); Insertion (I) | |---|---|---| | Biceps femoris <br/> Long head <br/> Short head | Extension of the thigh (long head); <br/> Flexion and lateral rotation of the leg (both heads); <br/> Extension of the thigh | O: Long head: Ischial tuberosity <br/> Short head: Linea aspera of the femur <br/> I: Head of the fibula | | Semimembranosus | Extension of the thigh and flexion of the leg; medial rotation of the leg | O: Ischial tuberosity <br/> I: Posterior surface of the medial condyle of the tibia | | Semitendinosus | Extension of the thigh and flexion of the leg; medial rotation of the leg | O: Ischial tuberosity <br/> I: Proximal medial surface of the tibia | ## Extenseur de la jambe | Muscles | Action | Origin (O); Insertion (I) | |---|---|---| | Quadriceps femoris <br/> Droit fémoral | Extension of the leg; <br/> Flexion of the thigh | O: Anterior inferior iliac spine <br/> I: Quadriceps tendon over the patella, then patellar ligament to the tibial tuberosity | | Vaste intermédiaire | Extension of the leg | O: Anterolateral surface of the femur <br/> I: Quadriceps tendon over the patella, then patellar ligament to the tibial tuberosity | | Vaste latéral | Extension of the leg | O: Greater trochanter and linea aspera <br/> I: Quadriceps tendon over the patella, then patellar ligament to the tibial tuberosity | | Vaste médial | Extension of the leg | O: Intertrochanteric line and linea aspera of the femur <br/> I: Quadriceps tendon over the patella, then patellar ligament to the tibial tuberosity |