Rectus abdominis free ﬂap is supplied by:: (A) Intercostals artery, (B) Iliolumbar artery, (C) Epigastric artery, (D) Thoraco-lumbar artery
Answer is C. The rectus abdominis muscle flap is supplied by 2 vascular pedicles, the cranial and caudal epigastric vessels .
The principal blood supply is the caudal epigastric artery, which perfuses approximately 2/3 of the length of the muscle, with the remainder of the muscle supplied by the cranial epigastric artery.