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valve of foramen ovale

 

Definition: a fold projecting into the left atrium from the margin of the foramen ovale in the fetus; when, with beginning inspiration, the blood pressure within the left atrium increases, the valve closes and its edges become adherent to the margin of the foramen ovale, occluding it.

Synonym(s): valvula foraminis ovalisTA, falx septi, valve of oval foramen

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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