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Triangular space

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Triangular space

The triangular space (also known as the medial triangular space, upper triangular space, or medial axillary space or foramen omotricipitale) is an axillary space.

Contents

It should not be confused with 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.

    References

    Triangular space Wikipedia
    (Text) CC BY-SA