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Atria
- ... where the wall between the right and left atria does not close properly, leaving a hole between the two atria.
- Structure of the Heart (National Cancer Institute)Anatomy/Images ... Anatomy ... National Cancer Institute ... From the National Institutes of Health
- ... external structures of the heart include the ventricles, atria, arteries and veins. Arteries carry blood away from ...
- The heart is made up of the two atria which receive blood and two ventricles which are ...