Question | Answer |
Rectus femoris | O: Anterior inferior iliac spine
I: tibial tuberosity
A: Extends knee, flexes thigh |
Vastus lateralis | O: Greater trochanter and linea aspera
I: Tibial tuberosity
A: Extends leg |
Vastus indermedius | O: Shaft of femur
I: tibial tuberosity
A: extends leg |
Vastus medialis | O: Intertrochanteric line and linea aspera
I: tibial tuberosity
A: extends leg |
Sartorius | O: Anterior superior iliac spine
I: Pes anserinus (medial to tibial tuberosity)
A: flexes thigh and rotates thigh laterally |
Psoas major | O: Transverse processes and bodies T12-L5
I: Lesser trochanter of femur
A: flexes thigh and rotates thigh laterally |
Iliacus | O: Iliac fossa
I: Lesser trochanter of femur
A: Flexes thigh and rotates thigh laterally |
Pectineus | O: Superior ramus of pubis
I: Lesser trochanter of femur
A: Adducts, flexes, and medially rotates leg |
Gracillis | O: Inferior ramus and body of pubis
I: Pes anserinus (medial to tibial tuberosity)
A: Adducts lower limb |
Tensor fasciae latae | O: Iliac crest and anterior superior iliac spine
I: Iliotibial band
A: Abduct thigh |
Biceps femoris | O: Ischial tuberosity and linea aspera
I: Head of fibula
A: Extends thigh and flexes leg; laterally rotates leg |
Semimembranosus | O: Ischial tuberosity
I: Medial condyle of tibia
A: Extends thigh and flexes leg; medially rotates leg |
Semitendinosus | O: Ischial tuberosity
I: Pes anserinus (medial to tibial tuberosity
A: Extends thigh and flexes leg; medially rotates leg |
Gluteus maximus | O: Iliac crest, sacrum, coccyx
I: Gluteal tuberosity, linea aspera, and iliotibial band
A: Extends thigh |
Gastrocnemius | O: Medial and lateral epicondyles of femur
I: Calcaneus (via calcaneal tendon)
A: Plantar fexes foot |
Soleus | O: Shaft of tibia and fibula
I: Calcaneus (via calcaneal tendon)
A: plantar flexes foot |
Plantaris | O: Lateral supracondylar ridge of femur
I: calcaneus
A: Plantar flexes foot |
Popliteus | O: lateral condyle of femur
I: posterior surface of tibia
A: flexes leg, medial rotation |