Anterior Thigh Muscles

Question 0

Pectineus

Insertion

Answer 0

Pectineal line of femur, just inferior to lesser trochanter

Question 1

Pectineus

Origin

Answer 1

Superior ramus of pubis

Question 2

Pectineus

Innervation

Answer 2

Femoral nerve L2, L3

may receive branch from obturator nerve

Question 3

Pectineus

Actions

Answer 3

Adducts and flexes hip joint

Medial rotation of hip joint

Question 4

Sartorius

Origin

Answer 4

Anterior superior iliac spine and superior part of notch inferior to it

Question 5

Sartorius

Insertion

Answer 5

Superior part of medial surface of tibia

Question 6

Sartorius

Innervation

Answer 6

Femoral Nerve L2, L3

Question 7

Sartorious

Actions

Answer 7

Flexes, abducts, and laterally rotates hip joint

Flexes knee joint

Question 8

Psoas Major

Origin

Answer 8

Sides of T12-L5 vertebrae and discs between them

Transverse processes of all lumbar vertebrae

Question 9

Psoas Major

Insertion

Answer 9

Lesser trochanter of femur

Question 10

Psoas Major

Innervation

Answer 10

Anterior rami of lumbar nerves

L1, L2, L3

Question 11

Psoas Major

Actions

Answer 11

Acting conjointly in flexing hop joint and in stabilizing this joint
Postural muscle that helps control deviation of trunk and is active during standing

Question 12

Iliacus

Origin

Answer 12

Iliac crest, iliac fossa, ala of sacrum, and anterior sacroiliac ligaments

Question 13

Iliacus

Insertion

Answer 13

Tendon of psoas major

Lesser trochanter and femur distal to it

Question 14

Iliacus

Innervation

Answer 14

Femoral nerve L2,L3

Question 15

Iliacus

Actions

Answer 15

Flexes hip joint and in stabilizing this joint

Question 16

Rectus Femoris

Origin

Answer 16

Anterior inferior iliac spine and ilium superior to acetabulum

Question 17

Rectus Femoris

Insertion

Answer 17

Common tendinous and independent attachments to base of patella
Indirectly via patellar ligament to tibial tuberosity
Vastus medialis and lateralis also attach to tibia and patella via aponeuroses

Question 18

Rectus Femoris

Innervation

Answer 18

Femoral nerve

L2, L3, L4

Question 19

Rectus Femoris

Actions

Answer 19

Extend knee joint

Stabilizes hip joint and helps iliopsoas flex hip joint

Question 20

Vastus Lateralis

Origin

Answer 20

Greater trochanter and lateral lip of linea aspera

Question 21

Vastus Lateralis

Insertion

Answer 21

Via common tendinous and independent attachments to base of patella
Indirectly via patellar ligament to tibial tuberosity
Tibia and patella via aponeuroses

Question 22

Vastus Lateralis

Innervation

Answer 22

Femoral Nerve L2, L3,L4

Question 23

Vastus Lateralis

Actions

Answer 23

Extends knee joint

Question 24

Vastus Medialis | Origin

Answer 24

Intertrochanteric line and medial lip of linea aspera

Question 25

Vastus Medialis | Insertion

Answer 25

Tibia and patella via aponeuroses Common tendinous and independent attachments to base of patella Indirectly via patellar ligament to tibial tuberosity

Question 26

Vastus Medialis | Innervation

Answer 26

Femoral Nerve | L2,L3,L4

Question 27

Vastus Medialis | Actions

Answer 27

Extends knee joint

Question 28

Vastus Intermedius | Origin

Answer 28

Anterior and lateral surfaces of shaft of femur

Question 29

Vastus Intermedius | Insertion

Answer 29

Common tendinous and independent attachments to base of patella Indirectly via patellar ligament to tibial tuberosity

Question 30

Vastus Intermedius | Innervation

Answer 30

Femoral Nerve | L2, L3, L4

Question 31

Vastus Intermedius | Actions

Answer 31

Extends knee joint