Levator Scapulae: Difference between revisions

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C1 to 4  
C1 to 4  


Posterior tubercle of ransverse process of [[Cervical Vertebrae|Cervical Vertebrae]] 1 to 4<ref name="1">http://www.anatomyexpert.com/structure_detail/5502/</ref>  
Posterior tubercle of ransverse process of [[Cervical Vertebrae|Cervical Vertebrae]] 1 to 4<ref name="p1">http://www.anatomyexpert.com/structure_detail/5502/</ref>  


== Insertion  ==
== Insertion  ==
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[[Scapula|Scapula]]  
[[Scapula|Scapula]]  


Vertebral margin of the scapula, between the superior angle and the root of the spine<ref name="2">http://www.wheelessonline.com/ortho/levator_scapula</ref>  
Vertebral margin of the scapula, between the superior angle and the root of the spine<ref name="p2">http://www.wheelessonline.com/ortho/levator_scapula</ref>  


== Nerve Supply  ==
== Nerve Supply  ==
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C3 to 5  
C3 to 5  


Cervical nerve (C3, C4) and dorsal scapular nerve (C5)<ref name="3">http://www.bartleby.com/107/121.html</ref>  
Cervical nerve (C3, C4) and dorsal scapular nerve (C5)<ref name="p3">http://www.bartleby.com/107/121.html</ref>  


== Blood Supply  ==
== Blood Supply  ==


Descending scapular artery<ref name="4">Joseph P Iannotti, Richard Parker.fckLRThe Netter Collection of Medical Illustrations: Musculoskeletal System, Volume 6, Part I - Upper Limb. Elsevier Health Sciences. 2012</ref>  
Descending scapular artery<ref name="p4">Joseph P Iannotti, Richard Parker.fckLRThe Netter Collection of Medical Illustrations: Musculoskeletal System, Volume 6, Part I - Upper Limb. Elsevier Health Sciences. 2012</ref>  


== Action  ==
== Action  ==


Elevation and rotation of the scapula<ref name="1" /><br>  
Elevation and rotation of the scapula<ref name="p1" /><br>  


== Function  ==
== Function  ==
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Elevation of the scapula, and rotation of it inferior angle medially, in movements such as elevation of the upper limb  
Elevation of the scapula, and rotation of it inferior angle medially, in movements such as elevation of the upper limb  


If the scapula is fixed, it helps produce cervical side flexion<ref name="2" />  
If the scapula is fixed, it helps produce cervical side flexion<ref name="p2" />  


== Resources  ==
== Resources  ==

Revision as of 12:44, 6 June 2017

Description
[edit | edit source]

Levator scapulae connects the upper limb to the vertebral column and lies in the posterior triangle of the neck

Its superior aspect is covered by Sternocleidomastoid, and its inferior part by Trapezius

Levator scapulae muscle animation small2.gif

Origin[edit | edit source]

C1 to 4

Posterior tubercle of ransverse process of Cervical Vertebrae 1 to 4[1]

Insertion[edit | edit source]

Scapula

Vertebral margin of the scapula, between the superior angle and the root of the spine[2]

Nerve Supply[edit | edit source]

C3 to 5

Cervical nerve (C3, C4) and dorsal scapular nerve (C5)[3]

Blood Supply[edit | edit source]

Descending scapular artery[4]

Action[edit | edit source]

Elevation and rotation of the scapula[1]

Function[edit | edit source]

Elevation of the scapula, and rotation of it inferior angle medially, in movements such as elevation of the upper limb

If the scapula is fixed, it helps produce cervical side flexion[2]

Resources[edit | edit source]

Recent Related Research (from Pubmed)[edit | edit source]

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References[edit | edit source]

  1. 1.0 1.1 http://www.anatomyexpert.com/structure_detail/5502/
  2. 2.0 2.1 http://www.wheelessonline.com/ortho/levator_scapula
  3. http://www.bartleby.com/107/121.html
  4. Joseph P Iannotti, Richard Parker.fckLRThe Netter Collection of Medical Illustrations: Musculoskeletal System, Volume 6, Part I - Upper Limb. Elsevier Health Sciences. 2012