Zones Territory Supply
I Midcentral abdominal wall above the umbilicus. Deep epigastric arcade.
II Lower abdominal wall below umbilicus. Epigastric arcade, superficial inferior epigastric, superficial external pudendal and superficial circumflex.
III Lateral abdominal wall. Intercostal, subcostal, and lumbar arteries.
Table 1: Blood Supply to Abdominal Wall.