Posterior Scalene: 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:Wendy Walker|Wendy Walker]]


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== Description  ==
== Description  ==
<div>Posterior Scalene, AKA Scalenus Posterior,&nbsp; is one of the lateral muscles of the neck, belonging to the Scalene group. It is deeply placed, lying behind Sternocleidomastoid. </div>  
<div>Posterior Scalene, AKA Scalenus Posterior,&nbsp; is one of the lateral muscles of the neck, belonging to the Scalene group. It is deeply placed, lying behind Sternocleidomastoid. </div>  
[[Image:Scalenus posterior - animation03.gif]]  
[[Image:Scalenus posterior - animation03.gif|300x300px]]  


== Origin  ==
== Origin  ==
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== References  ==  
== References  ==


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[[Category:Anatomy]] [[Category:Cervical Spine]] [[Category:Muscles]] [[Category:Musculoskeletal/Orthopaedics]]
[[Category:Anatomy]] [[Category:Cervical_Spine]] [[Category:Muscles]] [[Category:Musculoskeletal/Orthopaedics]]

Revision as of 03:58, 17 October 2016

Original Editor - Wendy Walker

Lead Editors - Kim Jackson, Wendy Walker, Evan Thomas, Daphne Jackson and WikiSysop

Description[edit | edit source]

Posterior Scalene, AKA Scalenus Posterior,  is one of the lateral muscles of the neck, belonging to the Scalene group. It is deeply placed, lying behind Sternocleidomastoid.

Scalenus posterior - animation03.gif

Origin[edit | edit source]

C4 to 6

Posterior tubercles of the transverse processes of cervical vertebrae 4 to 6

Insertion[edit | edit source]

2nd Rib

Anterior surface of the 2nd rib, posterior to the tubercle for serratus anterior

Nerve Supply[edit | edit source]

Branchial Plexus C6 to 8

Branches of the ventral rami of cervical spinal nerves C6 to 8

Blood Supply[edit | edit source]

Ascending cervical artery and superficial cervical artery

Action[edit | edit source]

Acting from above: elevation of the 2nd rib

Acting from below, with Anterior and Middle Scalene cervical side flexion and rotation[1]

Function[edit | edit source]

Acting from above: acccessorymuscle of inspiration

Acting from below, cervical side flexion and rotation; if both sides acting, small degree of cervical flexion

Resources[edit | edit source]

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

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References[edit | edit source]

  1. J Orthop Sports Phys Ther. 2002 Oct;32(10):488-96.fckLRActions of the scalene muscles for rotation of the cervical spine in macaque and human.fckLRBuford JA, Yoder SM, Heiss DG, Chidley JV