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semispinalis thoracis (muscle)

 

Definition: origin, transverse processes of fifth to eleventh thoracic vertebrae; insertion, spinous processes of first four thoracic and fifth and seventh cervical vertebrae; action, extends vertebral column; nerve supply, dorsal primary rami of cervical and thoracic spinal nerves.

Synonym(s): musculus semispinalis thoracisTA, musculus semispinalis dorsi, semispinal muscle of thorax

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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