Triangular space
Appearance
Triangular space | |
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![]() Suprascapular and axillary nerves of right side, seen from behind. The axillary spaces are labeled in green. Triangular space is the medial space. | |
![]() The scapular and circumflex arteries. (Triangular space is visible but not labeled.) | |
Anatomical terminology |
The triangular space (also known as the medial triangular space,[1] upper triangular space,[2] or medial axillary space[citation needed] or foramen omotricipitale) is an axillary space.
It should not be confused with the triangular interval, which transmits the radial nerve and the profunda brachii artery also called as the deep artery of the arm.
Boundaries
It has the following boundaries:
- the superior border of the teres major; inferiorly
- the long head of the triceps; laterally
For the inferior border, some sources list the teres minor,[2][3] while others list the subscapularis.[4]
Contents
It contains the scapular circumflex vessels.[5]

See also
References
- ^ Photo at tufts.edu
- ^ a b Kyung Won, PhD. Chung (2005). Gross Anatomy (Board Review). Hagerstown, MD: Lippincott Williams & Wilkins. p. 34. ISBN 0-7817-5309-0.
- ^ Anatomy photo:03:05-0101 at the SUNY Downstate Medical Center - "Triangular Space of Scapular Region"
- ^ Adam Mitchell; Drake, Richard; Gray, Henry David; Wayne Vogl (2005). Gray's anatomy for students. Elsevier/Churchill Livingstone. ISBN 0-443-06612-4.
{{cite book}}
: CS1 maint: multiple names: authors list (link) - ^ Wasfi F, Ullah M (1985). "Structures passing through the triangular space of the human upper limb". Acta Anat (Basel). 123 (2): 112–3. doi:10.1159/000146049. PMID 4061026.
External links
- . GPnotebook https://www.gpnotebook.co.uk/simplepage.cfm?ID=745209934.
{{cite web}}
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(help) - Diagram at microsurgeon.org
- Photo at tufts.edu
- Description at ganfyd.org
- Photo at ithaca.edu
This article incorporates text in the public domain from page 445 of the 20th edition of Gray's Anatomy (1918)