Multifidi and Rotatores
Multifidi and rotatores form a thick band of muscle that fills the lamina groove. They connect the transverse process of a vertebra to the vertebrae above it. The shortest strand is the deepest. As the strands lengthen to span more vertebrae, they become more superficial.
Rotatores are the deepest muscle in the lamina groove. Rotatores connect the transverse process of a vertebra to the spinous processes of the two vertebrae just above it.
Multifidi lay just on top of the rotatores. Multifidi connect from the transverse process of a vertebra to the spinous processes of the vertebrae 3-5 segments higher trapping two vertebrae between the attachments.
Multifidi attachments vary slightly in different sections or the spine.
Origin – mamillary process
Insertion – spinous process of the vertebrae 3-5 segments above the origin
Origin – transverse process
Insertion – the spinous process of the vertebrae 3-5 vertebrae above the origin
Origin – articular process (of the lower four vertebrae)
Insertion – transverse process of the vertebrae 2-4 segments above, up to the axis
Tony Preston has a practice in Atlanta, Georgia where he sees clients.
He has written and taught about anatomy, trigger points and cranial therapies since the mid-90s.