Scalenus Minimus: Difference between revisions
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'''Original Editor ''' - [[User:Wendy Walker|Wendy Walker]] | |||
'''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | |||
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== 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%< | <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 == | |||
C7 | |||
Anterior tubercle of transverse process of 7th cervical vertebra | |||
== Insertion == | |||
1st Rib and suprapleural fascia | |||
== Nerve Supply == | |||
Branches of the ventral rami of cervical spinal nerves 7 & 8 | |||
== Blood Supply == | |||
Subclavian artery, suprascapular artery and superficial cervical artery | |||
== Action == | |||
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 | |||
== Function == | |||
Accessory muscle of inspiration | |||
== References == | |||
<references /><br> | |||
[[Category:Anatomy]] | |||
[[Category:Cervical_Spine]] | |||
[[Category:Muscles]] | |||
[[Category:Musculoskeletal/Orthopaedics]] | |||
[[Category:Cervical Spine - Muscles]] |
Latest revision as of 13:40, 23 August 2019
Original Editor - Wendy Walker
Top Contributors - Vanessa Rhule, Kim Jackson, Wendy Walker and Evan Thomas
Description[edit | edit source]
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
References[edit | edit source]
- ↑ 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.
- ↑ 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