Rotatores, Interspinales and Intertransversarii

Human Movement Science & Functional Anatomy of the:

Rotatores, Interspinales and Intertransversarii

by Brent Brookbush MS, PES, CES, CSCS, ACSM H/FS

Rotatores, Interspinales and Intertransversarii –



  • Origin: Transverse processes of vertebrae at all levels (3)
  • Insertion: Base of the spinous process and adjacent lamenae.  The fibers spanning one segment may be referred to as short rotatores or rotatores brevis.  The fibers spanning 2 segments may be referred to as long rotatores or rotatores longus (3).
    • The rotatores are deep to the multifidus; lying between and adjacent (lateral) to vertebral facets.  (The multifidus fill the vertebral arch between spinous and transverse process, lying on top (posterior) the facet joints.)  The rotatores muscles are enveloped by the deepest and most medial layer of spinal fascia that extends from spinous process to transverse process in cross section.  The multifidus and interspinales are also enclosed within this compartment.
      • It is unlikely that the rotatores can be deferentially palpated.  However, when a “nodule” is palpated in the trough between spinous and transverse process, adjacent to a dysfunctional spinal segment, it may be over-activity and increased


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