Circumflex scapular aery is a branch of
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 Chaurasia's Human Anatomy, seventh edition , volume 1, pg. no., 53.
Thyrocervical trunk
Subscapular aery
Subclan aery
Aoa
Upper limb