Anterior Compartment of Thigh

Question 1

What is the origin of Sartorius?

Answer 1

Anterior Superior Iliac Spine (ASIS)

Question 2

What is the insertion of Sartorius?

Answer 2

Medial Surface of Tibia

Question 3

What is the innervation of Sartorius?

Answer 3

Femoral Nerve (L2, L3)

Question 4

What is the action of Sartorius?

Answer 4

Flexes thigh

Flexes knee

Question 5

What is the origin of Rectus Femoris?

Answer 5

Straight head = ASIS

Reflected head = Ilium (just superior to the acetabulum)

Question 6

What is the insertion of Rectus Femoris?

Answer 6

Quadriceps Femoris Tendon

Question 7

What is the innervation of Rectus Femoris?

Answer 7

Femoral Nerve

L2, L3, L4

Question 8

What is the action of Rectus Femoris?

Answer 8

FLEXES thigh

Extends leg at knee

Question 9

What is the origin of Vastus Lateralis?

Answer 9

• Lateral part of Intertrochanteric line
• Margin of GREATER TROCHANTER
• Lateral margin of GLUTEAL TUBEROSITY
• Lateral Lip of LINEA ASPERA

Question 10

What are the insertions of Vastus Lateralis

Answer 10

Quadriceps Femoris tendon

Lateral margin of patella

Question 11

What is the innervation of Vastus Lateralis?

Answer 11

Femoral Nerve

L2, L3, L4

Question 12

What is the action of Vastus Lateralis?

Answer 12

Extends leg at knee

Question 13

What is the origin of Vastus Medialis?

Answer 13

• medial part of INTERTROCHANTERIC LINE
• Pectineal line (of femur)
• Medial lip of linea aspera
• Medial Supracondylar line

Question 14

What is the insertion of Vastus Medialis?

Answer 14

Quadriceps femoris tendon

Medial border of patella

Question 15

What is the innervation of Vastus Medialis?

Answer 15

Femoral Nerve

L2, L3, L4

Question 16

What is the function of Vastus Medialis?

Answer 16

Extends leg at knee joint

Question 17

What is the origin of Vastus intermedius?

Answer 17

Upper 2/3rs of the anterior and lateral surfaces of the femur.

Question 18

What is the insertion of Vastus intermedialis?

Answer 18

Quadriceps Tendon (base of patella)

Question 19

What is the action of vastus intermedius?

Answer 19

Extends leg at knee joint

Question 20

What is the origin of iliopsoas?

Answer 20

Psoas Major = Lumbar Vertebrae

Iliacus = iliac fossa

Question 21

What is the insertion of Iliopsoas?

Answer 21

Lesser trochanter of femur

Question 22

What is the innervation of iliopsoas?

Answer 22

Psoas Major = anterior rami of L2, L3, L4

Iliacus = Femoral nerve

Question 23

what is the action of iliopsoas?

Answer 23

Flexes lower limb at hip joint

Lateral rotation of hip

Question 24

what is the innervation of vastus intermedius?

Answer 24

Femoral nerve (L2, L3, L4)

Question 25

What muscles of the anterior compartment of the thigh work to Flex the thigh?

Answer 25

Sartorius Rectus Femoris iliopsoas

Question 26

What muscles of the anterior compartment of the thigh work to flex the leg at the knee?

Answer 26

Sartorius

Question 27

What muscles of the ant comp of the thigh work to extend the leg at the knee?

Answer 27

``` sartorius Rectus femoris vastus lateralis vastus medialis vastus intermedialis ```

Question 28

What is the common action of the quadriceps muscles?

Answer 28

Extends leg at the knee joint