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: For the superior border, some sources list the teres minor, while others list the subscapularis.
 * Inferior: the superior border of the teres major;
 * Lateral: the long head of the triceps;
 * Superior: Teres minor or Subscapularis

Contents
It contains the scapular circumflex vessels.

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