fossa ovalis

(redirected from oval fossa)

fos·sa o·va·'lis

1. [NA], an oval depression on the lower part of the septum of the right atrium; it is a vestige of the foramen ovale, and its floor corresponds to the septum primum of the fetal heart; Synonym(s): oval fossa
2. Synonym(s): saphenous opening

fossa ovalis

(1) Elliptical recess of vestible; recessus ellipticus vestibuli [NA6]. 
(2) Fossula of vestibular window; fossula fenestrae vestibuli.
(3) Saphenous hiatus; hiatus saphenus [NA6].

fos·sa o·va·lis

(fos'ă ō-vā'lis)
1. [TA] An oval depression on the lower part of the septum of the right atrium; it is a vestige of the foramen ovale, and its floor corresponds to the septum primum of the fetal heart.
2. Synonym(s): saphenous opening.
References in periodicals archive ?
The diameter of LAA orifice; the distances between the orifices of left superior pulmonary veins, left anterior descending (LAD) artery, circumflex artery, mitral valve, oval fossa and LAA orifices were measured.
The distance between LAA orifice and oval fossa was 27.
There was a small defect in the oval fossa together with an inferior sinus venosus defect; not the expected isolated secundum ASO.
The sinus venosus defect was closed with a Gore-Tex patch, taking care to leave the hepatic veins to the right side of the septum, and the defect in the oval fossa was closed directly.