lumbar branch of iliolumbar artery
lum·bar branch of il·i·o·lum·bar ar·ter·y
[TA]terminal branch of iliolumbar artery (with iliac branch) that ascends to supply psoas major and quadratus lumborum muscles; anastomosis: fourth lumbar artery.
Synonym(s): ramus lumbalis arteriae iliolumbalis [TA]
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