Hip Flexion

Question 1

Psosas major

Answer 1

Origin: base of transverse processes of L1-L5
Insertion: lesser trochanter
Action: hip flexion
Innervation: femoral nerve L2-L3

Question 2

Sartorius

Answer 2

Origins: ASIS
Insertions: proximal medial surface of the tibia
Action: flexes, abducts, laterally rotates the thigh and medically rotates the flexed knee
Innervation: femoral nerve L2-L3

Question 3

Iliacus

Answer 3

Origin: Anterior Iliac fossa
Insertion: lesser trochanter
Action: hip flexion
Innervation: femoral nerve

Question 4

Pectineus

Answer 4

Origin: superior pubic Ramus
Insertion: lesser trochanter to the linea aspera
Action: flexes and addicts the thigh
Innervation: femoral nerve L2-L4

Question 5

Rectus femoris

Answer 5

Origin: long head AIIS
short head ilium above acetabulum
Insertion: quadriceps tendon of the patella
Action: extends the knee and flexes the hip
Innervation: L2-L4 femoral nerve

Question 6

Gracilis

Answer 6

Origin: inferior Ramus of the pubis
Insertion: upper aspect of medial shaft of tibia
Action: medial rotation, addicts the hip, flexes and medial rotation of the knee
Innervation: obturator nerve L3-L4