View source for Triangular space

{{Use American English|date = January 2019}}
{{Short description|Anatomic space of the upper body}}
{{Use mdy dates|date = January 2019}}
{{Infobox anatomy
| Name        = Triangular space
| Latin       =
| Image       = Axillary_space.png
| Caption     = Suprascapular and axillary nerves of right side, seen from behind. The [[axillary space]]s are labeled in green. Triangular space is the medial space.
| Image2      = Gray524.png
| Caption2    = The scapular and circumflex arteries. (Triangular space is visible but not labeled.)
| Precursor   =
| System      =
| Artery      =
| Vein        =
| Nerve       =
| Lymph       =
}}
The '''triangular space''' (also known as the '''medial triangular space''',<ref>[http://iris3.med.tufts.edu/dentgross/labguide/Shoulder4.html Photo at tufts.edu]</ref> '''upper triangular space''',<ref name="isbn0-7817-5309-0">{{cite book |author=Kyung Won, PhD. Chung |title=Gross Anatomy (Board Review) |publisher=Lippincott Williams & Wilkins |location=Hagerstown, MD |year=2005 |isbn=0-7817-5309-0 |page=34}}</ref> medial axillary space or foramen omotricipitale<ref name="Fermin 2015">{{cite book|last1=Valera Garrido|first1=Fermin|title=Advanced Techniques in Musculoskeletal Medicine and Physiotherapy: Using Minimally Invasive Therapies in Practice|date=2 October 2015|publisher=Elsevier Health Sciences|isbn=9780702062346|page=113|url=https://books.google.com/books?id=Yg3hCgAAQBAJ&pg=PA113|access-date=26 January 2018}}</ref>) is one of the three spaces found at the [[axillary space]]. The other two spaces are the [[quadrangular space]] and the [[triangular interval]].<ref name="BD Chaurasia 2010">{{cite book|last1=Krishna|first1=Garg|title=BD Chaurasia's Human Anatomy (Regional and Applied Dissection and Clinical) Volume 1 - Upper limb and thorax|date=2010|publisher=CBS Publishers and Distributors Pvt Ltd|location=India|isbn=978-81-239-1863-1|pages=81, 82|edition=Fifth|chapter=7 - Scapula}}</ref>

==Boundaries==
It has the following boundaries:
* Inferior: the superior border of the [[teres major]];
* Lateral: the long head of the [[triceps]];
* Superior: Teres minor
For the superior border, some sources list the [[teres minor]],<ref name="isbn0-7817-5309-0"/><ref>{{SUNYAnatomyLabs|03|05|01|01}} - "Triangular Space of Scapular Region"</ref> while others list the [[subscapularis]].<ref name="isbn0-443-06612-4">{{cite book |author=Adam Mitchell |author2=Drake, Richard |author3=Gray, Henry David |author4=Wayne Vogl |title=Gray's anatomy for students |publisher=Elsevier/Churchill Livingstone |year=2005 |isbn=0-443-06612-4 }}</ref>

==Contents==
It contains the [[scapular circumflex]] vessels.<ref>{{cite journal | vauthors = Wasfi F, Ullah M | title = Structures passing through the triangular space of the human upper limb | journal = Acta Anat (Basel) | volume = 123 | issue = 2 | pages = 112–3 | year = 1985 | pmid = 4061026 | doi = 10.1159/000146049}}</ref>

Unlike the quadrangular space or the triangular interval, no major nerve passes through the triangular space.
[[File:Gray412-spaces.png|thumb|right|200px|Muscles on the dorsum of the scapula, and the triceps brachii.]]

==See also==
* [[Quadrangular space]]
* [[Triangular interval]]

==References==
{{Reflist}}

==External links==
* [http://www.microsurgeon.org/back_muscles_parascap.jpg Diagram at microsurgeon.org]
* [http://iris3.med.tufts.edu/dentgross/labguide/Shoulder4.html Photo at tufts.edu]
* {{usurped|1=[https://web.archive.org/web/20070927205309/http://www.ganfyd.org/index.php?title=Triangular_space Description at ganfyd.org]}}
* [http://www.ithaca.edu/faculty/lahr/LE2000/UE_Ind_Study_99/shoulder/edited/superficial_post.jpeg Photo at ithaca.edu]
*{{Gray's}}

{{Upper limb general}}

{{DEFAULTSORT:Triangular space}}
[[Category:Upper limb anatomy]]


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