Supraclavicular nerves
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2008-01-27T05:46:59Z
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{{Infobox Nerve |
Name = Supraclavicular nerves |
Latin = nervi supraclaviculares |
GraySubject = 210 |
GrayPage = 928 |
Image = Gray805.png |
Caption = The nerves of the scalp, face, and side of neck. (Supraclavicular nerves visible at bottom.) |
Image2 = Gray804.png |
Caption2 = Plan of the [[cervical plexus]]. (Superficial descending labeled at bottom left.) |
Innervates = |
BranchFrom = C3–C4 of [[cervical plexus]] |
BranchTo = |
MeshName = |
MeshNumber = |
DorlandsPre = n_05 |
DorlandsSuf = 12566811 |
}}
The '''supraclavicular nerves''' (descending branches) arise from the third and fourth [[cervical nerves]]; they emerge beneath the posterior border of the [[Sternocleidomastoideus]], and descend in the [[posterior triangle of the neck]] beneath the [[platysma]] and [[deep cervical fascia]].
==Branches==
Near the clavicle they perforate the fascia and Platysma to become cutaneous, and are arranged, according to their position, into three groups—anterior, middle and posterior.
===Medial supraclavicular nerve===
The '''medial supraclavicular nerves''' or ''anterior supraclavicular nerves'' (nn. supraclaviculares anteriores; suprasternal nerves) cross obliquely over the [[external jugular vein]] and the clavicular and sternal heads of the [[sternocleidomastoideus]], and supply the skin as far as the middle line. They furnish one or two filaments to the [[sternoclavicular joint]].
===Intermedial supraclavicular nerve===
The '''intermedial supraclavicular nerve''' ''middle supraclavicular nerves'' (nn. supraclaviculares medii; supraclavicular nerves) cross the [[clavicle]], and supply the skin over the [[pectoralis major]] and [[deltoideus]], communicating with the cutaneous branches of the [[upper intercostal nerves]].
===Lateral supraclavicular nerve=== <!--Lateral supraclavicular nerve redirects here-->
The '''lateral supraclavicular nerve''' or ''posterior supraclavicular nerves''<ref>[http://www.biology-online.org/dictionary/Posterior_supraclavicular_nerve Biology-online]</ref>(nn. supraclaviculares posteriores; supra-acromial nerves) pass obliquely across the outer surface of the [[trapezius]] and the [[acromion]], and supply the skin of the upper and posterior parts of the [[shoulder]].
==Additional images==
<gallery>
Image:Gray784.png|Dermatome distribution of the trigeminal nerve
Image:Gray811and813.PNG|Cutaneous nerves of right upper extremity.
Image:Gray812and814.PNG|Diagram of segmental distribution of the cutaneous nerves of the right upper extremity.
Image:Gray1210.png|Side of neck, showing chief surface markings.
</gallery>
==References==
<references/>
==External links==
* {{NormanAnatomy|lesson6}}
{{Gray's}}
{{Cervical plexus}}
[[Category:Nervous system]]
{{neuroscience-stub}}
[[de:Nervus supraclavicularis]]