| iliolumbar artery | (n) an artery that originates in the internal iliac artery and supplies the pelvic muscles and bones, Syn. arteria iliolumbalis |
| lumbar artery | (n) one of four or five pairs of arteries that originate in the abdominal aorta and supply the lumbar vertebrae and the back muscles and abdominal wall, Syn. arteria lumbalis |