limbus fossae ovalis(redirected from anulus ovalis)
lim·bus fos·'sae o·va·'lis[TA]
a muscular ring surrounding the fossa ovalis in the wall of the right atrium of the heart.
Synonym(s): border of oval fossa ☆ , anulus ovalis, margin of fossa ovalis, Vieussens anulus, Vieussens isthmus, Vieussens limbus, Vieussens ring
Farlex Partner Medical Dictionary © Farlex 2012
limbus fossae ovalis
The thickened margin of the fossa ovalis cordis, esp. the rim of the septum secundum bounding the fossa.
See also: limbus
Medical Dictionary, © 2009 Farlex and Partners
Vieussens,Raymond de, French anatomist, 1641-1715.
valve of Vieussens - a prominent valve in the great cardiac vein where it turns around the obtuse margin to become the coronary sinus.
Vieussens annulus - Synonym(s): Vieussens ring
Vieussens ansa - Synonym(s): Vieussens loop
Vieussens centrum - the great mass of white matter composing the interior of the cerebral hemisphere. Synonym(s): centrum semiovale
Vieussens foramina - a number of fossae in the wall of the right atrium, containing the openings of minute intramural veins. Synonym(s): foramina of the venae minimae
Vieussens ganglia - the largest and highest group of prevertebral sympathetic ganglia, located on the superior part of the abdominal aorta, on either side of the origin of the celiac artery. Synonym(s): celiac ganglia
Vieussens isthmus - Synonym(s): Vieussens ring
Vieussens limbus - Synonym(s): Vieussens ring
Vieussens loop - a nerve cord connecting the middle cervical and stellate sympathetic ganglia, forming a loop around the subclavian artery. Synonym(s): ansa subclavia; Vieussens ansa
Vieussens ring - a muscular ring surrounding the fossa ovalis in the wall of the right atrium of the heart. Synonym(s): limbus fossae ovalis; Vieussens annulus; Vieussens isthmus; Vieussens limbus
Vieussens valve - the thin layer of white matter stretching between the two superior cerebellar peduncles forming the roof of the superior recess of the fourth ventricle. Synonym(s): superior medullary velum
Vieussens veins - the small superficial veins of the heart. Synonym(s): innominate cardiac veins
Vieussens ventricle - a slitlike, fluid-filled space of variable width between the left and right transparent septum. Synonym(s): cavity of septum pellucidum
Medical Eponyms © Farlex 2012