The triangular space (also known as the medial triangular space,Photo at tufts.edu upper triangular space, medial axillary space or foramen omotricipitale) is one of the three spaces found at the axillary space. The other two spaces are the quadrangular space and the triangular interval.
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, - "Triangular Space of Scapular Region" while others list the subscapularis.
Contents It contains the scapular circumflex vessels.
Unlike the quadrangular space or the triangular interval, no major nerve passes through the triangular space.
See also Quadrangular space Triangular interval
References
External links Diagram at microsurgeon.org Photo at tufts.edu
Photo at ithaca.edu