Muscles Of The Anterior Compartment Of The Thigh

Question 1

What are the 7 muscles in the Anterior Compartment of the thigh?

Answer 1

Psoas Major, Iliacus, Vastus Medialis, Vastus Intermedius, Vastus Lateralis, Rectus Femoris, Sartorius

Question 2

What is the origin of the Psoas Major?

Answer 2

Posterior abdominal wall (lumbar transverse processes, intervertebral discs and adjacent bodies from T12 to L5 and tendinous arches between these points)

Question 3

What is the insertion of the Psoas Major?

Answer 3

Lesser trochanter of Femur

Question 4

What is the innervation of the Psoas Major?

Answer 4

Anterior Rami (L1, L2, L3)

Question 5

What is the function of the Psoas Major?

Answer 5

Flexes the thigh at the hip joint

Question 6

What is the origin of the Iliacus?

Answer 6

Posterior abdominal wall (liac fossa)

Question 7

What is the insertion of the Iliacus?

Answer 7

Lesser trochanter of femur

Question 8

What is the innervation of the Iliacus?

Answer 8

Femoral Nerve (L2, L3)

Question 9

What is the function of the Iliacus?

Answer 9

Flexes the thigh at the hip joint

Question 10

What is the origin of the vastus Medialis?

Answer 10

Femur- medial part of intertrochanteric line, pectineal line, medial lip of the linea aspera, medial supracondylar line

Question 11

What is the insertion of the vastus Medialis?

Answer 11

Quadriceps Femoris tendon and medial border of patella

Question 12

What is the innervation of the vastus Medialis?

Answer 12

Femoral Nerve (L2, L3, L4)

Question 13

What is the function of the vastus Medialis?

Answer 13

Extends the leg at the knee joint

Question 14

What is the origin of the Vastus Intermedius?

Answer 14

Femur- upper two-thirds of anterior and lateral surfaces

Question 15

What is the insertion of the Vastus Intermedius?

Answer 15

Quadriceps Femoris tendon, lateral margin of patella, and lateral condyle of tibia

Question 16

What is the innervation of the Vastus Intermedius?

Answer 16

Femoral Nerve (L2, L3, L4)

Question 17

What is the function of the Vastus Intermedius?

Answer 17

Extends the leg at the knee joint

Question 18

What is the origin of the Vastus Lateralis?

Answer 18

Femur- lateral part of intertrochanteric line, margin of greater trochanter, lateral margin of gluteal tuberosity, lateral lip of the linea aspera

Question 19

What is the insertion of the Vastus Lateralis?

Answer 19

Quadriceps Femoris tendon and lateral margin of patella

Question 20

What is the innervation of the vastus Lateralis?

Answer 20

Femoral Nerve (L2, L3, L4)

Question 21

What is the function of the vastus Lateralis?

Answer 21

Extends the leg at the knee joint

Question 22

What is the origin of the rectus Femoris?

Answer 22

Straight head originates from the anterior inferior iliac spine, reflected head originates from the ilium just superior to the acetabulum

Question 23

What is the insertion of the Rectus Femoris?

Answer 23

Quadriceps Femoris tendon

Question 24

What is the innervation of the Rectus Femoris?

Answer 24

Femoral Nerve (L2,L3,L4)

Question 25

What is the function of the rectus Femoris?

Answer 25

Flexes the thigh at the hip joint and extends the leg at the knee joint

Question 26

What is the origin of the sartorius?

Answer 26

Anterior superior iliac spine

Question 27

What is the insertion of the sartorius?

Answer 27

Media surface of tibia just inferomedial to tibial tuberosity

Question 28

What is the innervation of the Sartorius?

Answer 28

Femoral Nerve (L2, L3)

Question 29

What is the function of the Sartorius?

Answer 29

Flexes the thigh at the hip joint and flexes the leg at the knee joint