spinal artery

spinal artery
spinal artery n any of three arteries that supply the spinal cord and its membranes and adjacent structures:
a) a single unpaired artery that is formed by the anastomosis of a branch of the vertebral artery on each side and that descends in the anterior median fissure of the spinal cord called also anterior spinal artery
b) either of two arteries of which one arises from a vertebral artery on each side below the level at which the corresponding branch of the anterior spinal artery arises and which descend on the posterior lateral surface of the spinal cord along a line passing close to the entrance of the dorsal roots to the spinal cord called also posterior spinal artery

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any artery supplying the spinal cord, including the segmental spinal arteries and the anterior and posterior spinal arteries.

Medical dictionary. 2011.

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  • Anterior spinal artery — Infobox Artery Name = PAGENAME Latin = arteria spinalis anterior GraySubject = 148 Caption = Arteries of the brain, brain stem and upper spinal cord (anterior spinal artery at bottom) Caption2 = 1: posterior spinal vein 2: anterior spinal vein 3 …   Wikipedia

  • Posterior spinal artery — Infobox Artery Name = PAGENAME Latin = arteria spinalis posterior GraySubject = 148 GrayPage = 579 Caption = The three major arteries of the cerebellum: the SCA, AICA, and PICA. (Posterior spinal artery is not labeled, but region is visible.)… …   Wikipedia

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  • anterior spinal artery — n SPINAL ARTERY (a) …   Medical dictionary

  • posterior spinal artery — n SPINAL ARTERY (b) …   Medical dictionary

  • anterior spinal artery syndrome — injury to the ventral spinal cord caused by blockage of the anterior spinal artery and infarction of the areas it supplies. Below the level of the lesion complete paralysis, hypalgesia, and hypesthesia occur but there is relative preservation of… …   Medical dictionary

  • spinal artery anterior — arteria spinalis anterior …   Medical dictionary

  • spinal artery posterior — arteria spinalis posterior …   Medical dictionary

  • Artery of Adamkiewicz — Artery: Artery of Adamkiewicz Latin rami spinales arteriae vertebralis Supplies lumbar enlargement of lower spinal cord[1] Source abdominal aorta, vertebral artery    …   Wikipedia

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