interatrial septum

Medical Dictionary

interatrial septum in·ter·a·tri·al septum (ĭn'tər-ā'trē-əl)
n.
The wall between the atria of the heart.

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