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Trunk

Muscles contributing to the same function

Contents

FLEXION

LATERAL FLEXION

IPSILATERAL ROTATION

EXTENSION

  • Erector Spinae
    • Iliocostalis
    • Longissimus
    • Spinalis
  • Transversospinalis
    • Semispinalis
    • Multifidus
    • Rotatores
  • Quadratus Lumborum
  • Trapezius (middle and lower) – secondary function
  • Interspinales
  • Levatores Costarum (secondary function)

CONTRALATERAL ROTATION