Scalenus Minimus: Difference between revisions

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'''Original Editor '''- [[User:Wendy Walker|Wendy Walker]]  
'''Original Editor ''' - [[User:Wendy Walker|Wendy Walker]]  


'''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}} &nbsp;
'''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}}  
</div>  
</div>  
== Description  ==
== Description  ==
<div>Part of the Scalene group of lateral neck muscles,this muscle is absent in a large percentage of the population.</div><div>Cadaver studies report finding it on one side in between 7%<ref>Am Surg. 2013 Apr;79(4):372-4.fckLRScalenus minimus muscle: overestimated or not? An anatomical study.fckLRNatsis K, Totlis T, Didagelos M, Tsakotos G, Vlassis K, Skandalakis P.</ref> and 46%<ref>Walter G. Harry, John D.C. Bennett, Somes C. GuhafckLRScalene muscles and the brachial plexus: Anatomical variations and their clinical significancefckLRClinical AnatomyfckLRVolume 10, Issue 4, pages 250–252, 1997</ref> of the population.</div><div>AKA Albinus Muscle, Sibson Muscle.</div><div></div><div>[[Image:Scalenus minimus.jpg]]<br></div><div></div>  
<div>Part of the Scalene group of lateral neck muscles,this muscle is absent in a large percentage of the population.</div><div>Cadaver studies report finding it on one side in between 7%<ref>Am Surg. 2013 Apr;79(4):372-4. Scalenus minimus muscle: overestimated or not? An anatomical study. Natsis K, Totlis T, Didagelos M, Tsakotos G, Vlassis K, Skandalakis P.</ref> and 46%<ref>Walter G. Harry, John D.C. Bennett, Somes C. GuhafckLRScalene muscles and the brachial plexus: Anatomical variations and their clinical significance Clinical Anatomy Volume 10, Issue 4, pages 250–252, 1997</ref> of the population.</div><div>AKA Albinus Muscle, Sibson Muscle.</div><div></div><div>[[Image:Scalenus minimus.jpg]]<br></div><div></div>  
== Origin  ==
== Origin  ==


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== Action  ==
== Action  ==


Acting from above, in conjuction with [[Anterior Scalene|Anterior Scalene and]] [[Middle Scalene|Middle Scalene]]: elevation of 1st rib  
Acting from above, in conjuction with [[Anterior Scalene|Anterior Scalene]] and [[Middle Scalene|Middle Scalene]]: elevation of 1st rib  


Helps raise and tense the dome of the parietal pleura  
Helps raise and tense the dome of the parietal pleura  
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Accessory muscle of inspiration  
Accessory muscle of inspiration  


== Resources ==
== Recent Related Research ==
<div class="researchbox"><span>http://www.ncbi.nlm.nih.gov/entrez/eutils/erss.cgi?rss_guid=12KS9FYSUmvgjvtuBg0_9KK4ymOJrqpIQUNQLDOokmdvSsH9jh|charset=UTF-8|short|max=10</span></div>


== Recent Related Research&nbsp;  ==
<div class="researchbox"><span>http://www.ncbi.nlm.nih.gov/entrez/eutils/erss.cgi?rss_guid=12KS9FYSUmvgjvtuBg0_9KK4ymOJrqpIQUNQLDOokmdvSsH9jh|charset=UTF-8|short|max=10</span></div>
== References  ==
== References  ==



Revision as of 06:48, 1 May 2017

Original Editor - Wendy Walker

Top Contributors - Vanessa Rhule, Kim Jackson, Wendy Walker and Evan Thomas

Description[edit | edit source]

Part of the Scalene group of lateral neck muscles,this muscle is absent in a large percentage of the population.
Cadaver studies report finding it on one side in between 7%[1] and 46%[2] of the population.
AKA Albinus Muscle, Sibson Muscle.
Scalenus minimus.jpg

Origin[edit | edit source]

C7

Anterior tubercle of transverse process of 7th cervical vertebra

Insertion[edit | edit source]

1st Rib and suprapleural fascia

Nerve Supply[edit | edit source]

Branches of the ventral rami of cervical spinal nerves 7 & 8

Blood Supply[edit | edit source]

Subclavian artery, suprascapular artery and superficial cervical artery

Action[edit | edit source]

Acting from above, in conjuction with Anterior Scalene and Middle Scalene: elevation of 1st rib

Helps raise and tense the dome of the parietal pleura

Function[edit | edit source]

Accessory muscle of inspiration

Recent Related Research[edit | edit source]

References[edit | edit source]

  1. Am Surg. 2013 Apr;79(4):372-4. Scalenus minimus muscle: overestimated or not? An anatomical study. Natsis K, Totlis T, Didagelos M, Tsakotos G, Vlassis K, Skandalakis P.
  2. Walter G. Harry, John D.C. Bennett, Somes C. GuhafckLRScalene muscles and the brachial plexus: Anatomical variations and their clinical significance Clinical Anatomy Volume 10, Issue 4, pages 250–252, 1997