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 spaces 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,[http://iris3.med.tufts.edu/dentgross/labguide/Shoulder4.html Photo at tufts.edu] upper triangular space,{{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}} medial axillary space or foramen omotricipitale{{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}}) is one of the three spaces found at the axillary space. The other two spaces are the quadrangular space and the triangular interval.{{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}}

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,{{SUNYAnatomyLabs|03|05|01|01}} - "Triangular Space of Scapular Region" while others list the subscapularis.{{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 }}

Contents

It contains the scapular circumflex vessels.{{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}}

Unlike the quadrangular space or the triangular interval, no major nerve passes through the triangular space.

File:Gray412-spaces.png

See also

References

{{Reflist}}