Origin: anterior superior Iliac Spine (6)
Insertion: medial surface of the Tibia (13) 
Actions: thigh and leg Flexion, Abduction and Lateral Rotation of the thigh, Medial Rotation of the leg (if bent knee)
Helping Synergist Muscles:
- together with Rectus Femoris (1), Tensor Fasciae Latae, Ileopsoas, Gluteus Minimus, Adductor Magnus, Adductor Longus and Pectineus acts to produce the thigh flexion
- together with Gluteus Maximus, Gluteus Medius, Gluteus Minimus, Tensor Fasciae Latae and Rectus Femoris acts to produce the thigh Abduction
- together with Hamstrings, Gracilis and Gastrocnemius acts to produce the leg Flexion
- Semimembranosus, Semitendinosus and Gracilis helping it to produce the Medial Rotation of the leg
Notes: Sartorius muscle is a bi-articular muscle and it is the longest one in human body. Together with Gracilis and Semitendinosus tendons it joins in the "Pes Anserinus" before tibial insertion