Multifidus

Multifidus is a series of small muscles which travel up the length of the spine. It is an important muscle in the rehabilitation of Gilmore's Groin and lower back pain.

Origin

  • Posterior surface of the sacrum.  
  • Articular processes of the lumbar vertebrae.
  • Transverse processes of the thoracic vertebrae.  
  • Articular processes of C3-7.  

Insertion

  • Each part of the muscle inserts into the spinous process 2-4 vertebrae higher than its origin.  

Actions

  • Extension. 
  • Lateral flexion. 
  • Rotation of the spine.  

Innervation

  • Dorsal rami of the spinal nerves.  

Daily uses

  • Maintaining good posture of the spine.

Example strengthening exercises

Example stretching exercises

Related injuries

Related muscles