Anterior Thigh Muscles

Question 0

Insertion of pectineus

Answer 0

Pectineal line of femur inferior to lesser trochanter

Question 1

Origin of pectineus

Answer 1

Superior ramus of pubis

Question 2

Innervation of pectineus

Answer 2

Femoral nerve (L2,L3)

Question 3

Action of pectineus

Answer 3

Adducts and flexes hip joint, assists with medial rotation of hip joint

Question 4

Origin of sartorius

Answer 4

ASIS and superior part of notch inferior to it

Question 5

Insertion of sartorius

Answer 5

Superior part of medial surface of tibia

Question 6

Innervation of sartorius

Answer 6

Femoral nerve (L2,L3)

Question 7

Action of sartorius

Answer 7

Flexes, abducts, and laterally rotates hip joint, flexes knee joint

Question 8

Origin of psoas major

Answer 8

Sides of t12-l5 vertebrae and discs between them, transverse processes of lumbar vertebrae

Question 9

Insertion of psoas major

Answer 9

Lesser trochanter of femur

Question 10

Innervation of psoas major

Answer 10

Anterior rami of lumbar nerves (L1-L3)

Question 11

Action of psoas major

Answer 11

Flexes hip joint and stabilizes,helps control deviation of the trunk and is active during standing

Question 12

Origin of iliacus

Answer 12

Iliac crest, iliac fossa, ala of sacrum, and anterior sacro-iliac ligament

Question 13

Insertion of iliacus

Answer 13

Tendon of psoas ajor, lesser trochanter, femur distal to it

Question 14

Action of iliiacus

Answer 14

Flexes hip joint and stabilizes,helps control deviation of the trunk and is active during standing

Question 15

Origin of rectus femoris

Answer 15

AIIS and ilium superior to acetabulum

Question 16

Insertion of rectus femoris

Answer 16

Quadriceps tendon, attachments to base of patella, indirectly via pAtellar ligament and tibial tuberosity

Question 17

Innervation of rectus femoris

Answer 17

Femoral nerve (L2-L4)

Question 18

Action of rectus femoris

Answer 18

Extends knee, helps stabilize hip joint

Question 19

Origin of vastus lateralis

Answer 19

Greater trochanter and lateral lip of linea aspera

Question 20

Insertion of vastus lateralis

Answer 20

Quadriceps tendon, base of patella, indirectly via patellar ligament and tibial tuberosity

Question 21

Innervation of vastus lateralis

Answer 21

Femoral nerve (L2-L4)

Question 22

Action of vastus lateralis

Answer 22

Extends knee joint

Question 23

Origin of vastus medialis

Answer 23

Intertrochanteric line and medial lip of linea aspera

Question 24

Insertion of vastus medalis

Answer 24

Quadriceps tendon, base of patella, indirectly via patellar ligament and tibial tuberosity

Question 25

Innervation of vastus medialis

Answer 25

Femoral nerve (L2-L4)

Question 26

Action of vastus medialis

Answer 26

Extends knee joint

Question 27

Origin of vastus intermedius

Answer 27

Anterior and lateral surfaces of shaft of femur

Question 28

Insertion of vastus intermedius

Answer 28

Quadriceps tendon, base of patella, indirectly via patellar ligament and tibial tuberosity

Question 29

Innervation of vastus medialis

Answer 29

Femoral nerve (L2-L4)

Question 30

Action of vastus intermedius

Answer 30

Extends knee joint