Anatomical Variations of Lumbar Arteries and Their Clinical Implications: A Cadaveric Study

Figure 4

A posterior aspect of a fixed abdominal aorta demonstrating the fourth pair of lumbar arteries and the median sacral artery arising from a common stem. The first pair of lumbar arteries was absent. The lumbar arteries and the median sacral artery are painted in red. A: second pair of lumbar arteries. B: third pair of lumbar arteries. C: fourth pair of lumbar arteries. D: median sacral artery. E: right common iliac artery. F: abdominal aorta.