Quadratus Lumborum Muscle Flashcards

Flashcards are a great way to memorise information about the quadratus lumborum muscle. Test your knowledge of anatomy using the quadratus lumborum flashcards below.

Press a flash card to reveal the answer.


Inner lip of iliac crest & iliolumbar ligament


12th rib & transverse processes vertebra L1-L4


  • Assists inspiration by bracing the 12th rib
  • Assist stabilization of spine/pelvis
  • Bilateral contraction: Assists with trunk extension
  • Unilateral contraction: Assists with trunk lateral flexion


  • 12th thoracic intercostal nerve
  • Iliohypogastric nerve
  • Ilioinguinal nerve

Blood Supply

  • Lumbar arteries
  • A lumbar branch of the iliolumbar artery
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Would you like to learn more about the quadratus lumborum muscle? Then check out the quadratus lumborum muscle article and video by clicking the link below:
Quadratus Lumborum Muscle Anatomy

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