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1. Any of four arteries on the dorsal surface of the carpus; dorsal metacarpal artery.
2. Any of three arteries that spring from the deep palmar arch and anastomose with the dorsal metacarpal arteries; palmar metacarpal artery.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.