Triangular space
The triangular space (also known as the medial triangular space, 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 or Subscapularis For the superior border, some sources list the teres minor, 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 Description at ganfyd.org Photo at ithaca.edu Upper limb anatomy