Spinalis Thoracis: Difference between revisions
Abbey Wright (talk | contribs) No edit summary |
No edit summary |
||
| Line 6: | Line 6: | ||
== Description == | == Description == | ||
[[File:Muscles of the back erector spinae group Primal.png|thumb|442x442px]] | [[File:Muscles of the back erector spinae group Primal.png|thumb|442x442px]] | ||
Spinalis Thoracis belongs to the medial column of the [[Erector Spinae|erector spinae]] | Spinalis Thoracis belongs to the medial column of the [[Erector Spinae|erector spinae]], named the [[Spinalis]] 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> | 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> 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> | Spinous processes of T11-[[Lumbar Vertebrae|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" /> | Spinous processes of [[Thoracic Vertebrae|T2-T8]].<ref name=":1" /> | ||
=== Nerve === | === Nerve === | ||
Lateral branch of the posterior rami of spinal nerves<ref name=":1" /> | [[File:Spinalis.png|thumb|Spinalis Thoracis]] | ||
Lateral branch of the posterior rami of [[Thoracic Spinal Nerves|spinal nerves]]<ref name=":1" /> | |||
=== Artery === | === Artery === | ||
Posterior branch of posterior intercostal artery, deep cervical artery and muscular branches of vertebral artery.<ref name=":1" /> | Posterior branch of posterior intercostal artery, deep cervical artery and muscular branches of [[Vertebral Artery|vertebral artery.]]<ref name=":1" /> | ||
== Function == | == Function == | ||
| Line 30: | Line 31: | ||
[[Category:Anatomy]] [[Category:Muscles]] | [[Category:Anatomy]] [[Category:Muscles]] | ||
[[Category:Thoracic Spine - Anatomy]] | |||
Latest revision as of 07:00, 4 February 2022
Original Editor - Abbey Wright
Top Contributors - Abbey Wright and Lucinda hampton
Description[edit | edit source]
Spinalis Thoracis belongs to the medial column of the erector spinae, named the Spinalis muscles.
It is the most prominent and well-organised portion of the spinalis muscle, with spinalis capitis and spinalis cervicis superiorly.[1] 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[2]
Artery[edit | edit source]
Posterior branch of posterior intercostal artery, deep cervical artery and muscular branches of vertebral artery.[2]
Function[edit | edit source]
Spinalis thoracis works with the other spinalis and the other erector spinae muscles: longissimus and iliocostalis to produce thoracic extension as well as lateral flexion and rotation of the spine[1].
