<prompt> Circumflex scapular aery is a branch ofThyrocervical trunkSubscapular aerySubclan aeryAoa  <response>: Subscapular aery is the largest branch of the axillary aery, arising from its third pa. It runs along the lower border of the subscapularis to terminate near the inferior angle of the scapula. It supplies the latissimus dorsi and the serratus anterior. The Subscapular aery gives off a large branch, the circumflex scapular aery, which is larger than the continuation of the main aery. Ref : B D Chaurasias Human Anatomy, seventh edition , volume 1, pg. no., 53. 