Rotatores muscles

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Rotatores muscle
Latin Musculi rotatores
Gray's p.400
Origin Transverse process
Insertion Junction of transverse process and lamina, spinous process
Nerve Posterior branch
Anatomical terms of muscle

The rotatores (rotatores spinae) muscle lie beneath the multifidus and is present in all spinal regions but most prominent in the thoracic region; they are eleven in number on either side.

Each muscle is small and somewhat quadrilateral in form; it arises from the superior and posterior part of the transverse process, and is inserted into the lower border and lateral surface of the lamina of the vertebra above, the fibers extending as far as the root of the spinous process.

The first is found between the first and second thoracic vertebrae; the last, between the eleventh and twelfth. Sometimes the number of these muscles is diminished by the absence of one or more from the upper or lower end. The Rotatores muscles have a high density of proprioceptors and have been implicated in postural control.[1]

References[edit]

  1. ^ McGill, Stuart (2004). Ultimate Back Fitness and Performance. Ontario, Canada: Wabuno. p. 325. ISBN 978-0-9735018-0-3. 

This article incorporates text from a public domain edition of Gray's Anatomy.

External links[edit]