Anterior Compartment of Thigh Flashcards
What is the origin of Sartorius?
Anterior Superior Iliac Spine (ASIS)
What is the insertion of Sartorius?
Medial Surface of Tibia
What is the innervation of Sartorius?
Femoral Nerve (L2, L3)
What is the action of Sartorius?
Flexes thigh
Flexes knee
What is the origin of Rectus Femoris?
Straight head = ASIS
Reflected head = Ilium (just superior to the acetabulum)
What is the insertion of Rectus Femoris?
Quadriceps Femoris Tendon
What is the innervation of Rectus Femoris?
Femoral Nerve
L2, L3, L4
What is the action of Rectus Femoris?
FLEXES thigh
Extends leg at knee
What is the origin of Vastus Lateralis?
- Lateral part of Intertrochanteric line
- Margin of GREATER TROCHANTER
- Lateral margin of GLUTEAL TUBEROSITY
- Lateral Lip of LINEA ASPERA
What are the insertions of Vastus Lateralis
Quadriceps Femoris tendon
Lateral margin of patella
What is the innervation of Vastus Lateralis?
Femoral Nerve
L2, L3, L4
What is the action of Vastus Lateralis?
Extends leg at knee
What is the origin of Vastus Medialis?
- medial part of INTERTROCHANTERIC LINE
- Pectineal line (of femur)
- Medial lip of linea aspera
- Medial Supracondylar line
What is the insertion of Vastus Medialis?
Quadriceps femoris tendon
Medial border of patella
What is the innervation of Vastus Medialis?
Femoral Nerve
L2, L3, L4
What is the function of Vastus Medialis?
Extends leg at knee joint
What is the origin of Vastus intermedius?
Upper 2/3rs of the anterior and lateral surfaces of the femur.
What is the insertion of Vastus intermedialis?
Quadriceps Tendon (base of patella)
What is the action of vastus intermedius?
Extends leg at knee joint
What is the origin of iliopsoas?
Psoas Major = Lumbar Vertebrae
Iliacus = iliac fossa
What is the insertion of Iliopsoas?
Lesser trochanter of femur
What is the innervation of iliopsoas?
Psoas Major = anterior rami of L2, L3, L4
Iliacus = Femoral nerve
what is the action of iliopsoas?
Flexes lower limb at hip joint
Lateral rotation of hip
what is the innervation of vastus intermedius?
Femoral nerve (L2, L3, L4)
What muscles of the anterior compartment of the thigh work to Flex the thigh?
Sartorius
Rectus Femoris
iliopsoas
What muscles of the anterior compartment of the thigh work to flex the leg at the knee?
Sartorius
What muscles of the ant comp of the thigh work to extend the leg at the knee?
sartorius Rectus femoris vastus lateralis vastus medialis vastus intermedialis
What is the common action of the quadriceps muscles?
Extends leg at the knee joint
