erector spinae

US/ɪˌrɛk.tɚ ˈspaɪ.niː/

noun

The group of muscles of the back responsible for erect posture of the vertebral column.

Meanings

nounerector spinae (plural erectores spinae)

plural erectores spinae

  1. anatomyThe group of muscles of the back responsible for erect posture of the vertebral column.

    The erector spinae are all innervated by lateral branches of the posterior primary divisions (dorsal rami) of the nearby spinal nerves and are covered posteriorly in the thoracic and lumbar regions by the thoracolumbar fascia.

    2005, Gregory D. Cramer, Basic and Clinical Anatomy of the Spine, Spinal Cord, and ANS

Origin

Cite this entry
APA

erector spinae. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/erector%20spinae

MLA

“erector spinae.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/erector%20spinae. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “erector spinae,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/erector%20spinae.

Source: erector spinae on Wiktionary, CC BY-SA 4.0.