Surgery Which of the following structures are found in the quadrangular space? A Circumflex scapular vessels and the radial nerve B Posterior humeral circumflex aery and axillary nerve C Posterior humeral circumflex aery and the radial nerve D Profunda brachii aery and the axillary nerve 💡 Explanation Which of the following structures are found in the quadrangular space? ✓ Correct Answer: B. Posterior humeral circumflex aery and axillary nerve