The accompanying aery with axillary nerve in the quadrangular space is:: (A) Anterior circumflex humeral aery, (B) Posterior circumflex humeral aery, (C) Profunda brachii aery, (D) Circumflex scapular aery
Answer is B. Axillary nerve and posterior circumflex humeral aery pass through quadrangular space and then wind around the surgical neck of humerus.