Anterior Compartment Of Thigh (Flexors Of Hip Joint)

Question 1

Pectinus proximal attachment

Answer 1

Superior ramus of pubis

Question 2

Pectineus distal attachment

Answer 2

Pectineal line of femur, just inferior to lesser trochanter

Question 3

Pectineus innervation

Answer 3

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

Question 4

Pectineus main actions

Answer 4

Adducts and exes thigh; assists with medial rotation of thigh

Question 5

Psoas major proximal attachment

Answer 5

Sides of T12–L5 vertebrae and discs between them; transverse processes of all lumbar vertebrae

Question 6

Psoas major distal attachment

Answer 6

Lesser trochanter of femur

Question 7

Psoas major innervation

Answer 7

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

Question 8

Psoas major main action

Answer 8

Act conjointly in exing thigh at hip joint and in stabilizing this joint

Question 9

Psoas minor proximal attachment

Answer 9

Sides of T12–L1 vertebrae and intervertebral discs

Question 10

Psoas minor distal attachment

Answer 10

Pectineal line, iliopectineal emi-nence via iliopectineal arch

Question 11

Psoas minor innervation

Answer 11

Anterior rami of lumbar nerves (L1, L2)

Question 12

Psoas minor main action

Answer 12

Act conjointly in exing thigh at hip joint and in stabilizing this joint

Question 13

Iliacus main action

Answer 13

Act conjointly in exing thigh at hip joint and in stabilizing this joint

Question 14

Iliacus proximal attachment

Answer 14

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

Question 15

Iliacus distal attachment

Answer 15

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

Question 16

Iliacus innervation

Answer 16

Femoral nerve (L2, L3)

Question 17

Sartorius proximal attachment

Answer 17

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

Question 18

Sartorius distal attachment

Answer 18

Superior part of medial surface of tibia

Question 19

Sartorius innervation

Answer 19

Femoral nerve (L2, L3)

Question 20

Sartorius main action

Answer 20

Flexes, abducts, and laterally rotates thigh at hip joint; exes leg at knee joint, (medially rotating leg when knee is flexed)