interatrial septum

interatrial septum definition - medical

in·ter·a·tri·al septum (ĭnˌtər-āˈtrē-əl)

noun
The wall between the atria of the heart.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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