median sacral artery


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Related to median sacral artery: median sacral vein, Lumbar arteries

me·di·an sa·cral ar·ter·y

[TA]
origin, posterior aspect of abdominal aorta just above the bifurcation; distribution, lower lumbar vertebrae, sacrum, and coccyx; anastomoses, lateral sacral, superior and middle rectal.

median sacral artery

The final unpaired midline artery branching from the aorta; it originates 1 cm proximal to the aortic bifurcation, and it ends in the coccyx. Its branches include a pair of lumbar arteries and a number of small arteries to the rectum. Synonym: middle sacral artery
See also: artery