Hip flexors

Question 0

Psoas Major Inferior attachments

Answer 0

By a strong tendon to lesser trochanter of femur

Question 1

Psoas Major superior attachment

Answer 1

Transverse processes of lumbar vertebrae, sides of bodies of T12-S1 vertebrae and intervening IV discs

Question 2

Psoas Major innervation

Answer 2

Lumbar plexus via anterior branches of nerves L2-L4

Question 3

Psoas Major Actions

Answer 3

Acting inferiorly with Iliacus flexes thigh
acting superiorly flexes vertebral column laterally to balance trunk
when sitting acts inferiorly with iliacus to flex trunk

Question 4

The iliopsoas is made from what muscles?

Answer 4

Psoas and iliacus acting together

Question 5

Iliacus superior attachments

Answer 5

Superior two thirds of iliac fossa, ala of sacrum, and anterior sacro-iliac ligaments

Question 6

Iliacus inferior attachment

Answer 6

Lesser trochanter of femur and shaft inferior to it and to psos major tendon

Question 7

Iliacus Innervation

Answer 7

Femoral nerve L2-L4

Question 8

Iliacus actions

Answer 8

Flexus thigh and stabilizes hip joint; acts with psoas major

Question 9

Quadratus Lumborum Superior attachment

Answer 9

Medial half of inferior border of 12th rib and tips of lumbar transverse processes

Question 10

Quadratus Lumborum inferior attachment

Answer 10

Ililumbar ligament and internal lip of iliac crest

Question 11

Quadratus Lumborum innervation

Answer 11

Anterior branches of T 12 and L1-L4 nerves

Question 12

Quadratus Lumborum actions

Answer 12

Extends and laterally flexes vertebral column; fixes 12th rib during inspiration