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Medical Definition of Lamina elastica posterior
1. Elastic laminae of arteries, 1) external: the layer of elastic connective tissue lying immediately outside the smooth muscle of the tunica media; 2) internal: a fenestrated layer of elastic tissue of the tunica intima. Synonym: elastic layers of arteries, Henle's fenestrated elastic membrane, posterior limiting layer of cornea. (05 Mar 2000)