great segmental medullary artery

(redirected from great radicular artery)

great segmental medullary artery

largest of the medullary arteries that supply the spinal cord by anastomosing with the anterior (longitudinal) spinal artery; it arises from a lower intercostal or upper lumbar artery (on the left side about 65% of the time) supplying most of the blood to the lower two thirds of the anterior spinal artery. See: medullary arteries of brain.

great seg·men·tal me·dul·la·ry ar·te·ry

(grāt seg-men'tăl med'ŭ-lar'ē ahr'tĕr-ē)
Largest of the medullary arteries that supply the spinal cord by anastomosing with the anterior (longitudinal) spinal artery. It arises from a lower intercostal or upper lumbar artery (on the left side about 65% of the time) supplying most of the blood to the lower two-thirds of the anterior spinal artery.
See: medullary arteries of brain
References in periodicals archive ?
Management of patients undergoing TAAA repair poses challenges like single lung ventilation, massive blood loss-leading to dilutional coagulopathy accompanying large transfusion requirements, and avoidance of paraplegia-that may result as a consequence of prolonged ischemia or resection of the great radicular artery (Artery of Adamkiewicz).