Posterior Abdominal Wall Muscles Origin And Insertion

Question 1

Iliacus origin

Answer 1

Posterior abdominal wall (iliac fossa)

Question 2

iliacus insertion

Answer 2

lesser troachanter of femur

Question 3

Quadratus lumborum origin

Answer 3

medial aspect iliac crest, and iliolumbar ligament

Question 4

quadratus lumborum insertion

Answer 4

inferior side rib 12 and transverse processes of lumbar vertebrae

Question 5

Quadratus lumborum action

Answer 5

unilaterally: lateral flexion on same side, hip hiker
bilaterally: depression and stabilization of rib 12: flexes lumbar vertebrae: helps with inspiration.

Question 6

quadratus lumborum nerve

Answer 6

lumbar plexus