1. Muscles of the Calf, Thigh, and Hip
By: Mike Bazarnicki

2. Calf Muscles
Plantaris
Soleus
Gastrocnemius

3. Plantaris
Origin: Distal part of the lateral supracondylar line of femur and adjacent part of popliteal surface.
Insertion: Posterior calcaneous
Nerve: Tibial
Function: Ankle plantar flexion

4. Soleus Origin: Posterior head of fibula, the middle third of the tibia
Insertion: Combines with gastroc tendon to insert on the posterior calcaneous
Nerve: Tibial
Function: Ankle plantar flexion

5. Gastrocnemius
Origin: Posterior surface of the medial and lateral femoral condyles
Insertion: Posteromedial part of the calcaneal tuberosity
Nerve: Tibial
Function: Ankle plantar flexion and knee flexion

6. Thigh Muscles Rectus Femoris Vastus Lateralis Vastus Medialis
Vastus Intermedius
Semitendinosus
Semimembranosus
Biceps Femoris
Hamstrings
Quadriceps

7. Rectus Femoris Origin: Anterior inferior ilac spine
Insertion: Tibial tuberosity
Nerve: Femoral
Function: Knee extension and hip flexion

8. Vastus Lateralis
Origin: Proximal intertrochanteric line, lateral lip of gluteal tuberosity, and the anterior and inferior border of the greater trochanter
Insertion: Tibial tuberosity
Nerve: Femoral
Function: Knee Extension

9. Vastus Medialis Origin: Medial lip of linea aspera
Insertion: Tibial tuberoisty
Nerve: Femoral
Function: Knee extension

10. Vastus Intermedius Origin: Upper two thirds of femoral shaft
Insertion: Tibial tuberosity
Nerve: Femoral
Function: Knee Extension

11. Semitendinosus Origin: Ishial Tuberosity
Insertion: Proximal medial surface of the tibia
Nerve: Sciatic
Function: Knee flexion, internal rotation of the tibia, and assists with hip extension

12. Semimembranosus Orign: Ishial Tuberosity
Insertion: Posteromedial aspect of the medial tibial condyle
Nerve: Sciatic
Function: Knee flexion, internal rotation of the tibia at the knee, and assists with hip extension

13. Biceps Femoris
Origin: Ishial tuberosity and the lower half of linea aspera’s lip
Insertion: Lateral aspect of the fibular head, and the lateral tibial condyle
Nerve: Sciatic
Function: Knee flexion and external rotation and hip extension

14. Hip Muscles Sartorius Tensor Fascia Lata Psoas Major Iliacus
Gluteus Medius
Gluteus Minimus
Gluteus Maximus

15. Sartorius Origin: ASIS
Insertion: Proximal anteromedial aspect of the tibal condyle
Nerve: Femoral
Function: Hip flexion, abduction, external rotation, and knee flexion and medial rotation

16. Tensor Fascia Lata
Origin: Iliac crest just posterior to the ASIS and the outer surface of the ASIS
Insertion: IT band and into the knee
Nerve: Superior gluteal
Function: Hip flexion, abduction and internal rotation and assists with kne flexion

17. Psoas Major Origin: Transverse processes T12-L5
Insertion: Lesser trochanter of the femur
Nerve: Lumbar plexus of L1-L4
Function: Hip flexion and external rotation

18. Iliacus
Origin: Superior two thirds of the iliac fossa and the internal lip of the iliac crest
Insertion: Lesser trochanter
Nerve Femoral
Function: Hip flexion, external rotation, and may assist with adduction

19. Gluteus Medius Origin: External surface of the ilium.
Insertion: Greater trochanter
Nerve: Superior gluteal
Function: Hip abduction, internal rotation, external rotation, flexion, and extension

20. Gluteus Minimus Origin: External surface of ilium
Insertion: Greater trochanter
Nerve: Superior Gluteal
Function: Hip abduction, internal rotation, and flexion

21. Gluteus Maximus Origin: Posterior gluteal line of ilium
Insertion: IT band and gluteal tuberosity
Nerve: Inferior Gluteal
Function: Hip extension, external rotation, abduction, and adduction