part of part of connecting branch of vessel supplies blood to system abdomen transverse colon descending colon artery abdomen blood vessel colic flexure left colic artery ascending branch of left colic artery An artery that branches from the left colic artery and supplies the superior portion of the descending colon, the left colic flexure, and the right one half to one third of the transverse colon. FMA:14828 2025-06-16T09:40:19Z