The Hip Flexors

Question 1

Name the hip flexor muscles

Answer 1

Psoas major
Iliacus
Rectus Femoris
Sartorius
Pectineus

Question 2

Psoas major origin

Answer 2

Transverse processes of all lumbar vertebrae
Bodies of 12th thoracic and all lumbar vertebrae and intervertebral disc above all the lumbar vertebrae

Question 3

Psoas major insertion

Answer 3

Lesser trochanter of the femur

Question 4

Psoas major nerve supply

Answer 4

Lumbar plexus L2 & 3

Question 5

Psoas major action

Answer 5

Flexion of the hip, flexion of trunk

Question 6

Psoas major function

Answer 6

stepping

Question 7

Iliacus origin

Answer 7

Upper two thirds of Iliac Fossa of the innominate bone.
ala of the sacrum.

Question 8

iliacus insertion

Answer 8

Lesser Trochanter of the femur

Question 9

iliacus nerve supply

Answer 9

femoral nerve L2 & 3

Question 10

iliacus action

Answer 10

hip flexion

Question 11

iliacus function

Answer 11

stepping

Question 12

Pectineus origin

Answer 12

Superior Ramus of the pubis, iliopubic eminence and pubic tubercle of the innominate bone.

Question 13

Pectineus insertion.

Answer 13

pectineal line of femur

Question 14

pectineus nerve supply

Answer 14

femoral nerve L2 & 3

Question 15

pectineus action

Answer 15

flexion and adduction of the hip

Question 16

pectineus functions

Answer 16

stepping & moving leg medially

Question 17

rectus femoris origin

Answer 17

Anterior inferior iliac spine
reflected head above the acetabulum.

Question 18

rectus femoris insertion

Answer 18

patella upper border

Question 19

rectus femoris nerve supply

Answer 19

femoral nerve L 2 3 & 4

Question 20

rectus femoris action

Answer 20

Hip flexion & knee extension

Question 21

rectus femoris function

Answer 21

stepping

Question 22

sartorius origin

Answer 22

anterior superior iliac spine of innominate

Question 23

sartorius insertion

Answer 23

medial side of tibia with gracilis & semitendinosus

Question 24

sartorius nerve supply

Answer 24

femoral nerve L2 & 3

Question 25

sartorius action

Answer 25

Hip & knee flexion
thigh lateral rotation & abduction
medial rotation of tibia on the femur

Question 26

sartorius function

Answer 26

stepping, high kicks, changing direction of foot