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spinal artery

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Medical Dictionary

Main Entry: spinal artery
Function: noun
: any of three arteries that supply the spinal cord and its membranes and adjacent structures: a : a singleunpaired 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 spinalartery 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 arisesand 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
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Interactive Artery Tour
Take an Interactive Artery Tour and See How Plaque Builds Up-Get Info.
ArteryTour.com
Life Line Screening
Get health screenings that can assess carotid artery disease risk.
www.LifeLineScreening.com
Medical Dictionary

spinal artery n.

  1. An artery with origin in the vertebral artery, with distribution to the spinal cord and the pia mater, and with anastomoses to the branches of the intercostal and lumbar arteries; anterior spinal artery.

  2. An artery with origin in the vertebral artery, with distribution to the medulla, spinal cord, and pia mater; and with anastomoses to the spinal branches of the intercostal arteries; posterior spinal artery.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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