Triangular space explained

The triangular space (also known as the medial triangular space,^[1] upper triangular space,^[2] medial axillary space or foramen omotricipitale^[3]) is one of the three spaces found at the axillary space. The other two spaces are the quadrangular space and the triangular interval.^[4]

Boundaries

It has the following boundaries:

• Inferior: the superior border of the teres major;
• Lateral: the long head of the triceps;
• Superior: Teres minor or Subscapularis

For the superior border, some sources list the teres minor,^{[2] [5]} while others list the subscapularis.^[6]

Contents

It contains the scapular circumflex vessels.^[7]

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

See also

• Quadrangular space
• Triangular interval

External links

• Diagram at microsurgeon.org
• Photo at tufts.edu
• Description at ganfyd.org
• Photo at ithaca.edu

Notes and References

1. http://iris3.med.tufts.edu/dentgross/labguide/Shoulder4.html Photo at tufts.edu
2. Book: Kyung Won, PhD. Chung . Gross Anatomy (Board Review) . Lippincott Williams & Wilkins . Hagerstown, MD . 2005 . 0-7817-5309-0 . 34.
3. Book: Valera Garrido. Fermin. Advanced Techniques in Musculoskeletal Medicine and Physiotherapy: Using Minimally Invasive Therapies in Practice. 2 October 2015. Elsevier Health Sciences. 9780702062346. 113. 26 January 2018.
4. Book: Krishna. Garg. BD Chaurasia's Human Anatomy (Regional and Applied Dissection and Clinical) Volume 1 - Upper limb and thorax. 2010. CBS Publishers and Distributors Pvt Ltd. India. 978-81-239-1863-1. 81, 82. Fifth. 7 - Scapula.
5. - "Triangular Space of Scapular Region"
6. Book: Adam Mitchell . Drake, Richard . Gray, Henry David . Wayne Vogl . Gray's anatomy for students . Elsevier/Churchill Livingstone . 2005 . 0-443-06612-4 .
7. Wasfi F, Ullah M . Structures passing through the triangular space of the human upper limb . Acta Anat (Basel) . 123 . 2 . 112–3 . 1985 . 4061026 . 10.1159/000146049.