Apedia

Atria Foramen Ovale Atrioseptal Defect Asd Structure Abnormal

Front Atrioseptal defect
Back (ASD)

Structure: abnormal communication between the atria due to a failure of the foramen ovale to close (leaving a small patent foramen ovale in about 25% of people)

Function: has no effect, because equal pressure between atria prevents substantive blood flow through the hole

Tags: cardiovascular

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