Spinalis Thoracis: Difference between revisions
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== Description == | == Description == | ||
Spinalis Thoracis belongs to the medial column of the [[Erector Spinae|erector spinae]] (Sacrospinalis) group of muscles. | |||
It is the most prominent and well-organised portion of the spinalis muscle with [[Spinalis Capitis|spinalis capitis]] and [[Spinalis Cervicis|spinalis cervicis]] superiorly.<ref name=":0">Spinalis muscle [Internet]. Kenhub. 2021 [cited 30 November 2021]. Available from: https://www.kenhub.com/en/library/anatomy/spinalis-muscle</ref> With its muscle fibres running superiorly. | |||
=== Origin === | === Origin === | ||
Spinous processes of T11-L2.<ref name=":0" /><ref name=":1">Palastanga, N., & Soames, R. (2012). Anatomy and human movement (6th ed.). Edinburgh: Churchill Livingstone.</ref> | |||
=== Insertion === | === Insertion === | ||
Spinous processes of T2-T8.<ref name=":1" /> | |||
=== Nerve === | === Nerve === | ||
Lateral branch of the posterior rami of spinal nerves | |||
=== Artery === | === Artery === | ||
Posterior branch of posterior intercostal artery, deep cervical artery and muscular branches of vertebral artery. | |||
== Function == | == Function == | ||
Spinalis thoracis works with the other spinalis and the greater erector spinae muscles: [[Longissimus Thoracis|longissimus]] and [[Iliocostalis Thoracis|iliocostalis]] to produce cervical extension as well as lateral flexion and rotation of the spine and head. | |||
== | == References == | ||
<references /> | <references /> | ||
[[Category:Anatomy]] [[Category:Muscles]] | [[Category:Anatomy]] [[Category:Muscles]] | ||
Revision as of 15:20, 30 November 2021
Original Editor - User Name
Top Contributors - Abbey Wright and Lucinda hampton
Description[edit | edit source]
Spinalis Thoracis belongs to the medial column of the erector spinae (Sacrospinalis) group of muscles.
It is the most prominent and well-organised portion of the spinalis muscle with spinalis capitis and spinalis cervicis superiorly.[1] With its muscle fibres running superiorly.
Origin[edit | edit source]
Spinous processes of T11-L2.[1][2]
Insertion[edit | edit source]
Spinous processes of T2-T8.[2]
Nerve[edit | edit source]
Lateral branch of the posterior rami of spinal nerves
Artery[edit | edit source]
Posterior branch of posterior intercostal artery, deep cervical artery and muscular branches of vertebral artery.
Function[edit | edit source]
Spinalis thoracis works with the other spinalis and the greater erector spinae muscles: longissimus and iliocostalis to produce cervical extension as well as lateral flexion and rotation of the spine and head.
References[edit | edit source]
- ↑ 1.0 1.1 Spinalis muscle [Internet]. Kenhub. 2021 [cited 30 November 2021]. Available from: https://www.kenhub.com/en/library/anatomy/spinalis-muscle
- ↑ 2.0 2.1 Palastanga, N., & Soames, R. (2012). Anatomy and human movement (6th ed.). Edinburgh: Churchill Livingstone.
