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Sartorius

Contents

Anatomy

Position

  • Superficial

Origin

  • Spina iliaca anterior superior (SIAS)

Insertion

  • Pes anserineus

Main function

  • Hip
    • Flexion
    • Abduction
    • Lateral rotation
  • Knee
    • Flexion
  • Pelvis
    • Anterior tilt

Secondary function

  • Knee
    • Medial rotation
  • Pelvis
    • Depression
    • Contralateral rotation

Nerve innervation

  • Segmental
    • L2-L3
  • Peripheral
    • Nervus femoralis

Arterial supply

  • Femoral artery

Referred pain pattern

Sartorius - pain pattern

Muscle Type

  • Phasic
    • Weakens when overactivated

Symptoms

  • Paraesthesia of outer thigh

Videos

Short version

Detailed version