Spinalis Thoracis

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起源al Editor-Abbey Wright

Top Contributors-Abbey WrightandLucinda hampton

Description[edit|edit source]

Muscles of the back erector spinae group Primal.png

Spinalis Thoracis belongs to the medial column of theerector spinae, named theSpinalismuscles.

It is the most prominent and well-organised portion of the spinalis muscle, withspinalis capitisandspinalis cervicissuperiorly.[1]Its muscle fibres running superiorly.

起源[edit|edit source]

Spinous processes of T11-L2.[1][2]

插入[edit|edit source]

Spinous processes ofT2-T8.[2]

Nerve[edit|edit source]

Spinalis Thoracis

Lateral branch of the posterior rami ofspinal nerves[2]

Artery[edit|edit source]

Posterior branch of posterior intercostal artery, deep cervical artery and muscular branches ofvertebral artery.[2]

Function[edit|edit source]

Spinalis thoracis works with the other spinalis and the other erector spinae muscles:longissimusandiliocostalisto produce thoracic extension as well as lateral flexion and rotation of the spine[1].

References[edit|edit source]

  1. ↑1.01.11.2Spinalis muscle [Internet]. Kenhub. 2021 [cited 30 November 2021]. Available from:https://www.kenhub.com/en/library/anatomy/spinalis-muscle
  2. ↑2.02.12.22.3Palastanga, N., & Soames, R. (2012). Anatomy and human movement (6th ed.). Edinburgh: Churchill Livingstone.
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