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Longus Colli


  • origin:
    • from bondies of the 5th, 6th, and 7th cervical and the 1st, 2nd and 3rd thoracic vertebrae, with the slips from transverse processes;
  • insertion:
    • it lies on the anterior surface of the vertebral bodies between C1 and T3;
    • bodies of 2nd, 3rd, and 4th cervicals with slips to transverse processes;
  • action:
    • acting bilaterally, flexes cervical vertebrae; acting unilaterally, assists in rotation and lateral flexion;
  • synergists:
    • scalenus group, sterncleidomastoid, longus capitis, suprahyoid, infrahyoid and the platysma