Superior boundary
Subscapularis and teres minor
Inferior boundary
Teres major
Lateral boundary
Surgical neck of the humerus
Medial boundary
Long head of triceps brachii
Anatomical significance
A gap in muscles of the posterior scapular region
Is a pathway for neurovascular structures to move from the axilla to the posterior shoulder and arm
What runs through here?
Axillary nerve
Posterior circumflex humeral artery