Triangular space

Triangular space
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.)
Gray's	subject #124 445

The triangular space (also known as the medial triangular space,^[1] upper triangular space,^[2] or medial axillary space^{[citation needed]}) 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 Teres major inferiorly
• the long head of the Triceps laterally

For the superior border, some sources list the Teres minor,^[2][3] while others list the Subscapularis.^[4]

Contents

It contains the scapular circumflex vessels.^[5]

Muscles on the dorsum of the scapula, and the Triceps brachii.

See Also

• Quadrangular space
  

• Triangular interval

References

1. ^ Photo at tufts.edu
2. ^ ^{a b} Kyung Won, PhD. Chung (2005). Gross Anatomy (Board Review). Hagerstown, MD: Lippincott Williams & Wilkins. p. 34. ISBN 0-7817-5309-0. 
3. ^ SUNY Labs 03:05-0101 - "Triangular Space of Scapular Region"
4. ^ Adam Mitchell; Drake, Richard; Gray, Henry David; Wayne Vogl (2005). Gray's anatomy for students. Elsevier/Churchill Livingstone. ISBN 0-443-06612-4. 
5. ^ 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

• 745209934 at GPnotebook
• Diagram at microsurgeon.org
• Photo at tufts.edu
• Description at ganfyd.org
• Photo at ithaca.edu
• This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

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