Psoas Major Muscle Flashcards

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

Press a flash card to reveal the answer.


Transverse processes L1-L5 + vertebral bodies T12-L5 & adjacent intervertebral discs


Lesser trochanter of the femur


  • Flexion of the hip joint (primary)
  • Weak assistance in lateral flexion of the trunk
  • Weak assistance in external rotation of the femur
  • Provides dynamic stability to the femur and the hip


  • Anterior rami of the first, second and third lumbar nerves (L1-L3)

Blood Supply

  • Lumbar branch of iliolumbar artery (primary source)
  • Obturator artery
  • External iliac artery
  • Femoral artery
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Would you like to learn more about the psoas major muscle? Then check out the psoas major muscle article and video by clicking the link below:
Psoas Major Muscle Anatomy

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