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middle sacral artery

n :  a small artery that arises from the back of the abdominal part of the aorta just before it forks into the two common iliac arteries and that descends near the midline in front of the fourth and fifth lumbar vertebrae, the sacrum, and the coccyx to the glumus coccygeum .
 
 

 
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North Big Horn Hospital District (Lovell, Wyoming - Big Horn County)