The accompanying aery with axillary nerve in the quadrangular space is:
Axillary nerve and posterior circumflex humeral aery pass through quadrangular space and then wind around the surgical neck of humerus.
Anterior circumflex humeral aery
Posterior circumflex humeral aery
Profunda brachii aery
Circumflex scapular aery
Upper limb- bones and muscles(proximal) and scapular movement