Thigh Flashcards
Sartorius
Origin: ASIS
Insertion: Medial surface of superior shaft of tibia (pes anserinus)
Innervation: femoral nerve
Action: flexes the thigh and flexes the leg
Rectus Femoris
Origin: anterior inferior iliac spine (AIIS) and grove superior to acetabulum
Insertion: quadriceps tendon-patella-tibial tuberosity
Innervation: femoral nerve
Action: extends the leg and flexes hip
Vastus Lateralis
Origin: greater trochanter
Insertion: quadriceps tednon and lateral border of patella
Innervation: femoral nerve
Action: extends the leg
Vastus Medialis
Origin: intertrochanteric line and linea aspera
Insertion: quadriceps tendon and medial border of patella
Innervation: femoral nerve
Action: extends the leg
Vastus Intermedius
Origin: intertrochanteric line of femur and upper 2/3 of the anterior surface of the femur
Insertion: quadriceps femoris tendon
Innervation: femoral nerve
Action: extends the leg
Bicep Femoris
Origin: LH- ischial tuberosity (biarticular), SH- linea aspera
Insertion: lateral tibia, head of fibula
Innervation: SH- common fibular nerve, LH- tibial nerve
Action: thigh extension, knee flexion
Semitendiosus
Origin: Ischial tuberosity
Insertion: pes anserinus
Innervation: tibial nerve
Action: thigh extension and knee flexion
Semimembranosus
Origin: ischial tuberosity
Insertion: medial condyle of tibia
Innervation: tibial nerve
Action: thigh extension and knee flexion
Adductor Longus
Origin: body of pubis close to the symphysis
Insertion: linea aspera of femur
Innervation: obturator nerve
Action: adducts thigh and rotates thigh medially
Adductor Brevis
Origin: inferior pubic ramus close to the symphysis
Insertion: upper part of the linea aspera of femur
Innervation: obturator nerve
Action: adducts thigh at the hip joint
Adductor Magnus
Origin: inferior ramus of pubis, inferior ramus of ischium and ischial tuberosity
Insertion: linea aspera of femur and supracondylar line
Innervation: obturator nerve and branches form the sciatic
Action: adducts thigh
Gracilis
Origin: inferior ramus of pubis
Insertion: pes anserinus
Innervation: obturator nerve
Action: adducts thigh and flexes leg
Pectineus
Origin: pubis-superior ramus
Insertion: pectineal line of femur
Innervation: femoral nerve
Action: adducts and flexes thigh
