Flashcards in Posterior abdominal muscles Deck (8):
The quadratus lumborum is implicated in the formation of which ligament?
the iliolumbar ligament
What is the insertion of the quadratus lumborum?
transverse tubercle of the transverse process L1-L4 & 12th rib
What will innervate the quadratus lumborum?
the ventral rami of T12 & L1-L3 or L4 spinal nerves
What is the origin of psoas major?
vertebral bodies T12, L1-L5, S1 and transverse processes of L1-L5
What will innervate the psoas major?
primarily the ventral rami of L2 & L3, may include ventral rami of L1 & L4 spinal nerve
What is the origin of the psoas minor?
vertebral bodies T12, L1
What will innervate the psoas minor?
the ventral ramus of L1 spinal nerve