Thursday, October 20, 2011

Lumbar Artery

The lumbar artery is one of four or five pairs of arteries which arises from the abdominal aorta and supply the lumbar vertebrae and the back muscles and abdominal wall. The lumbar arteries travel lateralward and backward on the bodies of the lumbar vertebræ, behind the sympathetic trunk, to the intervals between the adjacent transverse processes, and are then continued into the abdominal wall. They anastomose with the iliolumbar, the deep iliac circumflex, the lower intercostal, the subcostal, and the inferior epigastric arteries.