semispinalis thoracis (dorsi), (semispinal muscle of thorax)

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Origin

transverse processes of T5-T11

Insertion

spinous process of C5, C7 & T1-T4

Action

extends vertebral column

Innervation

dorsal rami of cervical & thoracic spinal nerves

More general terms

References

  1. Stedman's Medical Dictionary 26th ed, Williams & Wilkins, Baltimore, 1995