Muscles Of Anterior Compartment Of Thigh

Question 1

Rectus Femoris

Answer 1

O: AIIS and rim of acetabulum
I: tibial tuberosity via patellar ligament
A: flex hip and extend knee
N: femoral

Question 2

Vastus Intermedius

Answer 2

O: anterior surface of femur
I: tibial tuberosity via patellar ligament
A: extend knee
N: femoral

Question 3

Vastus Lateralis

Answer 3

O: lateral surface of femur
I: tibial tuberosity via patellar ligament
A: extend knee
N: femoral

Question 4

Vastus Medialis Oblique

Answer 4

O: medial surface of femur and tendon of adductor magnus
I: tibial tuberosity via patellar ligament
A: extend knee (control patellar tracking)
N: femoral

Question 5

Sartorius

Answer 5

O: ASIS
I: superior end of medial surface of tibia (Pes Anserine)
A: flex and laterally rotate thigh at hip, weak abductor of thigh and weak flexor of leg
N: femoral

Question 6

Iliopsoas

Answer 6

O: transverse process, bodies and IVD T12-L5; iliac fossa
I:lesser trochanter
A:flexion of thigh, lateral flexion of trunk and flexion of trunk
N:ventral primary rami L1-3, femoral