Anterior Thigh Muscles

Question 0

Pectineus insertion

Answer 0

Pectineal line of femur, inferior to lesser trochanter

Question 1

Pectineus origin

Answer 1

Superior ramus of pubis

Question 2

Innervation of pectineus

Answer 2

Femoral nerve L2,L3 and may receive branch from obturator nerve

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 in 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,L2,L3

Question 11

Action of psoas major

Answer 11

Acting con jointly in flexing hip joint and in stabilizing hip joint, acts as a posture muscle

Question 12

Origin of iliacus

Answer 12

Illiac crest, illiac fossa, ala of sacrum and anterior sacro-illiac ligaments

Question 13

Insertion of illiacus

Answer 13

Tendon of psoas major, lesser trochanter of femur and femur distal to it

Question 14

Innervation of iliacus

Answer 14

Femoral nerve L2,L3

Question 15

Action of iliacus

Answer 15

Acting con jointly in flexing hip joint

Question 16

Origin of rectus femoris

Answer 16

AIIS and ilium superior to acetabulum

Question 17

Origin of vastus lateralis

Answer 17

Greater trochanter and lateral lip of linea aspera

Question 18

Origin of vastus medialis

Answer 18

Inter trochanteric line and medial lip of linea aspera

Question 19

Origin of vastus intermedius

Answer 19

Anterior and lateral surfaces of shaft of femur

Question 20

Insertion of quadriceps femoris

Answer 20

Quadriceps tendon to base of patella via patellar ligament to tibial tuberosity

Question 21

Innervation of quadriceps femoris

Answer 21

Femoral nerve L2,L3,L4

Question 22

Action of quadriceps femoris

Answer 22

Extends knee joint, rectus femoris also stabilizes hip joint and helps iliopsoas flex hip joint