1. FRONT OF THIGH
PRESENTED BY

2. MUSCLES OF FRONT OF THIGH
 SARTORIUS
 QUADRICEPS FEMORIS
 ARTICULARIS GENU

3. Runs down to the length of
Thigh in the anterior
compartment
LONGEST &THIN Muscle
Tailor`s Muscle

4. ORIGIN INSERTION
 Antero Superior iliac
spine
 Upper half of the notch
below the antero superior
iliac spine
 Upper part of medial
surface of shaft of Tibia
in front of insertion of the
Gracilis and
Semitendinosus

5. SARTORIUS
NERVE SUPPLY BLOOD SUPPLY
 FEMORAL NERVE
NERVE ROOT
L2
L3
 FEMORAL ARTERY

6. Flexion
 abduction
lateral rotation of the hip
flexion of the knee
ACTION OF SARTORIUS MUSCLE

7. It is comprises of FOUR Muscles
1. Rectus Femoris
2.Vastus lateralis
3.Vastus medialis
4.Vastus Intermedius
Too useful in effective exercise like

8. RECTUS FEMORIS
ORIGIN INSERTION
Arises by two head
 Straight head arises
from upper part of the anterior
inferior iliac spine
 Reflected head arises
from groove above the brim of
acetabulum, fibrous capsule of
hip joint
 base of patella and through
common tendon of quadriceps
femoris and Ligamentum
patellae to tuberosity of tibia

10. NERVE SUPPLY

11. ACTION OF RECTUS FEMORIS
1.Extensor of knee joint
2.flexes the hip joint
3.flexes the pelvis on head of femur when
thigh is fixed because this muscle can flex the hip
while extending the knee. It is called
``footballer`s muscle``

12. VASTUS LATERALIS
ORIGIN INSERTION
 Upper part of
inter- trochanteric line of
femur
 Anterior and inferior
borders of the greater
trochanter
 Lateral lip of gluteal
tuberosity
 Upper half of lateral lip of
linea aspera
 Lateral and upper borders
of patella through common
tendon of quadriceps
femoris through
ligamentum patellae to the
tuberosity of tibia

13. VASTUS LATERALIS

14. Action of VASTUS LATERALIS
 Extensors of the knee joint
 Provides stability to the knee joint

15. VASTUS MEDIALIS
ORIGIN INSERTION
 Lower part of
inter-trochantric line of
femur
 Spiral line of femur
 Medial line of linea aspera
 Upper two thirds of medial
supra condylar line
 Medial and upper borders
of patella and through
common tendons of
quadriceps femoris and
through ligamentum
patellae to the tuberosity
of tibia

17. 1.Extensor of the knee joint
2.During terminal extension at
knee, it prevent lateral displacement of
patella by retaining it in its groove on
patellar surface of femur
3.Provides stability to the knee
joint
ACTION OF VASUS MEDIALIS

18. VASTUS INTERMEDIUS
ORIGIN INSERTION
 Upper two thirds
of anterior and
lateral surface of
shaft femur
 Lower half of
linea aspera
 Lateral inter
muscular septum
 Lateral borders of patella through
common tendon of quadriceps
femoris and ligamentum patellae to
the tuberosity of tibia

19. NERVE SUPPLY

20. a small skeletal muscle
located anteriorly on
the thigh just above the knee.

21. ARTICULARIS GENU
ORIGIN INSERTION
 Anterior surface of lower
part of shaft of femur
Upper part of synovial
membrane of knee joint

22. ARTICULARIS GENU
NERVE SUPPLY BLOOD SUPPLY

23. Action of ARTICLARIS GENU
During the extension of knee joint
it pulls the synovial membrane (supra patellar
bursa) upwards thus preventing damage to
knee joint