Longissimus Thoracis: Difference between revisions

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'''Original Editor '''- Your name will be added here if you created the original content for this page.
'''Original Editor '''- [[User:Oyemi Sillo|Oyemi Sillo]]


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== Clinically Relevant Anatomy<br> ==
== Description  ==
[[Image:250px-Longissimus.png|longissimus thoracis|alt=|thumb]]The [[longissimus]] muscle is a long intrinsic [[Back Muscles|muscle of the back]]. Along with [[spinalis]] and [[Iliocostalis Thoracis|iliocostalis]], these three muscles comprise the [[Erector Spinae|erector spinae group.]] <ref name=":0">Ken Hub Longissimus Available: https://www.kenhub.com/en/library/anatomy/longissimus-muscle<nowiki/>(accessed 5.2.2022)</ref> It is divided into three parts ([[Longissimus Capitis|capitis]], cervicis, thoracis) based on their superior attachments and location. The erector spinae muscles, including longissimus, are the most powerful extensors of the vertebral column<ref name=":0" />.
== Origin ==


add text here relating to '''''clinically relevant''''' anatomy of the condition<br>  
The common broad, thick tendon with Iliocostalis Lumborum, fibers from the transverse and mamillary processes of the lumbar&nbsp;vertebrae and lumbrosacral aponeurosis<ref name="p2">http://www.wheelessonline.com/ortho/longissimus_thoracis_1</ref>  


== Mechanism of Injury / Pathological Process<br> ==
== Insertion ==


add text here relating to the mechanism of injury and/or pathology of the condition<br>  
The tips of transverse process of all thoracic vertebrae and the lower 9 or 10 ribs between the tubercles and angles <ref name="p2" />


== Clinical Presentation ==
== Nerve Supply ==


add text here relating to the clinical presentation of the condition<br>  
Dorsal rami of thoracic and lumbar spinal nerves (T7 to L5) <ref name="p3">http://www.anatomyexpert.com/app/structure/5230/</ref>


== Diagnostic Procedures ==
== Blood Supply ==


add text here relating to diagnostic tests for the condition<br>  
Dorsal branches of the posterior intercostal arteries from the thoracic aorta. <ref name="p3" />  


== Outcome Measures ==
== Action ==
[[File:Lower back extension.jpeg|thumb]]
Acting


add links to outcome measures here (see [[Outcome Measures|Outcome Measures Database]])
* unilaterally, extension of vertebral column and flexion to the same side
* bilaterally, extension and hyperextension&nbsp;of vertebral column<ref name="p2" />
== Function ==


== Management / Interventions<br> ==
<span style="line-height: 1.5em;">Draws ribs down to help with breathing<ref name="p3" />&nbsp;</span>  


add text here relating to management approaches to the condition<br>
== Differential Diagnosis<br>  ==
add text here relating to the differential diagnosis of this condition<br>
== Key Evidence  ==
add text here relating to key evidence with regards to any of the above headings<br>
== Resources <br>  ==
add appropriate resources here
== Case Studies  ==
add links to case studies here (case studies should be added on new pages using the [[Template:Case Study|case study template]])<br>
== Recent Related Research (from [http://www.ncbi.nlm.nih.gov/pubmed/ Pubmed])  ==
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== References  ==
== References  ==


References will automatically be added here, see [[Adding References|adding references tutorial]].
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[[Category:Anatomy]][[Category:Muscles]][[Category:Lumbar Spine - Anatomy]] [[Category:Lumbar Spine - Muscles]] [[Category:Lumbar Spine]]

Latest revision as of 07:05, 5 February 2022

Original Editor - Oyemi Sillo

Lead Editors - Oyemi Sillo, Kim Jackson, Lucinda hampton, WikiSysop and 127.0.0.1  

Description[edit | edit source]

longissimus thoracis

The longissimus muscle is a long intrinsic muscle of the back. Along with spinalis and iliocostalis, these three muscles comprise the erector spinae group. [1] It is divided into three parts (capitis, cervicis, thoracis) based on their superior attachments and location. The erector spinae muscles, including longissimus, are the most powerful extensors of the vertebral column[1].

Origin[edit | edit source]

The common broad, thick tendon with Iliocostalis Lumborum, fibers from the transverse and mamillary processes of the lumbar vertebrae and lumbrosacral aponeurosis[2]

Insertion[edit | edit source]

The tips of transverse process of all thoracic vertebrae and the lower 9 or 10 ribs between the tubercles and angles [2]

Nerve Supply[edit | edit source]

Dorsal rami of thoracic and lumbar spinal nerves (T7 to L5) [3]

Blood Supply[edit | edit source]

Dorsal branches of the posterior intercostal arteries from the thoracic aorta. [3]

Action[edit | edit source]

Lower back extension.jpeg

Acting

  • unilaterally, extension of vertebral column and flexion to the same side
  • bilaterally, extension and hyperextension of vertebral column[2]

Function[edit | edit source]

Draws ribs down to help with breathing[3] 

References[edit | edit source]

  1. ↑ 1.0 1.1 Ken Hub Longissimus Available: https://www.kenhub.com/en/library/anatomy/longissimus-muscle(accessed 5.2.2022)
  2. ↑ 2.0 2.1 2.2 http://www.wheelessonline.com/ortho/longissimus_thoracis_1
  3. ↑ 3.0 3.1 3.2 http://www.anatomyexpert.com/app/structure/5230/
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