<prompt> Boundaries of quadrilateral space include all except -Teres majorLong head of tricepsNeck of humerusDeltoid  <response>: - Boundaries of quadrilateral space Superior- Sub scapularis, Shoulder joint capsule and teres minor Medial- Long head of triceps Lateral- Surgical neck of humerus Inferior- Teres major Content- axillary nerve and posterior circumflex humeral vessels. 