Anteromedial Thigh

Question 1

Psoas Major Origin

Answer 1

Sides of T12-L5 vertebrae and discs; transverse processes of all lumbar vertebrae

Question 2

Psoas Major Insertion

Answer 2

Lesser trochanter of femur

Question 3

Psoas Major Action

Answer 3

Flexing Thigh at hip and stabilizing hip

Question 4

Psoas Major Innervation

Answer 4

Anterior rami of lumbar nerves (L1,L2,L3)

Question 5

Pectineus Origin

Answer 5

Superior ramus of pubis

Question 6

Pectineus Insertion

Answer 6

Pectineal line of femur, just inferior to lesser trochanter

Question 7

Pectineus Action

Answer 7

Adducts and flexes thigh; assists with medial rotation of thigh

Question 8

Pectineus Innervation

Answer 8

Femoral nerve (L2,L3); may receive branch of obturator nerve

Question 9

Sartorius Origin

Answer 9

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

Question 10

Sartorius Insertion

Answer 10

Superior part of medial surface of tibia

Question 11

Sartorius Action

Answer 11

Flexes, Abducts, and laterally rotates thigh at hip joint; flexes leg at knee joint; medially rotates leg when knee is flexed

Question 12

Adductor Longus Origin

Answer 12

Body of pubis inferior to pubic crest

Question 13

Adductor Longus Insertion

Answer 13

Middle third of linea aspera of femur

Question 14

Adductor Longus Action

Answer 14

Adducts thigh

Question 15

Adductor Longus Innervation

Answer 15

Obturator nerve, branch of anterior division (L2,L3,L4)

Question 16

Adductor Brevis Origin

Answer 16

Body and inferior ramus of pubis

Question 17

Adductor Brevis Insertion

Answer 17

Pectineal line and proximal part of linea aspera of femur

Question 18

Adductor Brevis Action

Answer 18

Adducts thigh, some flexion of thigh

Question 19

Adductor Brevis Innnervation

Answer 19

Obturator nerve, branch of anterior division (L2,L3,L4)

Question 20

Adductor Magnus Adductor Part Origin

Answer 20

Inferior ramus of pubis, ramus of ischium

Question 21

Adductor Magnus Adductor Part Insertion

Answer 21

Gluteal tuberosity, linea aspera, medial supracondylar line

Question 22

Adductor Magnus Adductor Part Action

Answer 22

Adducts thigh and flexes thigh

Question 23

Adductor Magnus Adductor Part Innervation

Answer 23

Obturator nerve (L2, L3, L4) branches of posterior division

Question 24

Obturator Externus Origin

Answer 24

Margins of obturator foramen and obturator membrane

Question 25

Obturator Externus Insertion

Answer 25

Trochanteric fossa of femur

Question 26

Obturator Externus Action

Answer 26

Laterally rotates thigh; steadies head of femur in acetabulum

Question 27

Obturator Externus Innervation

Answer 27

Obturator nerve (L3, L4)

Question 28

Psoas Minor Origin

Answer 28

Sides of T12 and L1 vertebrae and discs

Question 29

Psoas Minor Insertion

Answer 29

Pectineal line, iliopectineal eminence via iliopectineal arch

Question 30

Psoas Minor Innervation

Answer 30

Anterior rami of lumbar nerves(L1,L2)

Question 31

Psoas Minor Action

Answer 31

Flexes thigh and stabilizes hip

Question 32

Iliacus Origin

Answer 32

Iliac crest, iliac fossa, anterior sacro-iliac ligaments

Question 33

Iliacus Insertion

Answer 33

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

Question 34

Iliacus Innervation

Answer 34

Femoral Nerve (L2,L3)

Question 35

Iliacus Action

Answer 35

Flexes thigh and stabilizes hip