Final Posterior Adominal muscles

Question 1

contraction of qudratus lumborum will result in what movements

Answer 1

steadies the origin of the diaphragm
when pelvis is fixed it will laterally flex the lumbar spine
bilaterally acts to extend the lumbar spine
stabilizes and depresses the 12th rib

Question 2

what will innervate the psoas major

Answer 2

primarily the ventral rami of L2 and L3, may include ventral rami of L1 and L4 spinal nerves

Question 3

what is the origin of the psoas major

Answer 3

vertebral bodies T12, L1

Question 4

what will innervate the psoas minor

Answer 4

the ventral ramus of L1 spinal nerves

Question 5

what will innervate the illiacus

Answer 5

the femoral nerve, primarily the ventral rami of L2 and L3

Question 6

the quadratus lumborum is implicated in the formation of which ligaments

Answer 6

the illolumbar ligament