Thigh: Anterior Compartment

Question 1

Flexors of the thigh (at the hip joint)

Answer 1

Pectineus
Iliopsoas (psoas major, iliacus)
Sartorius

Question 2

Extensors of the leg (from the knee)

Answer 2

Quadriceps femoris (vastus intermedius, vastus lateralis, vastus medialis, rectus femoris)

Question 3

Innervation of the anterior compartment of the thigh

Answer 3

Femoral nerve (L2, L3, L4)
*psoas major (L1, L2, L3 -> direct branches of the anterior rami from the lumbar plexus)