valve of foramen ovale

(redirected from valvula foraminis ovalis)

valve of fo·ra·men o·va·le

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.
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Valvula foraminis ovalis (valvula do buraco oval): o termo valvula; -ae, substantivo da 1a declinacao, feminino, do singular no nominativo.