ring of Vieussens
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ring — 1. A circular band surrounding a wide central opening; a r. shaped or circular structure surrounding an opening or level area. SYN: anulus [TA]. 2. The closed ( i.e., endless) chain of atoms in a cyclic compound; commonly used for “cyclic” or… … Medical dictionary
Vieussens — Raymond de, French anatomist, 1641–1715. See V. anulus, V. ansa, V. centrum, V. foramina, under foramen, V. ganglia, under ganglion, V. isthmus, V. limbus, V. loop, V. ring, valve of V., V. valve, V. veins, under vein, V. ventricle … Medical dictionary
limbus — The edge, border, or fringe of a part. [L. a border] l. acetabuli [TA] SYN: acetabular margin. l. alveolaris 1. SYN: alveolar arch of mandible. 2. SYN: alveolar arch of maxilla. l … Medical dictionary
anulus — SYN: ring (1). [L.] a. abdominalis SYN: deep inguinal ring. a. ciliaris SYN: ciliary body. a. conjunctivae [TA] SYN: conjunctival ring. a. femoralis [TA] SYN: femoral ring. a. fibrocartilagineus membranae tympani [TA] SYN: fibrocartilaginous ring … Medical dictionary
limbus fossae ovalis — [TA] limbus of fossa ovalis: the prominent rounded margin of the fossa ovalis cordis; it represents the edge of the fetal septum secundum. Called also annulus ovalis, Vieussens annulus, and isthmus, ring, or l. of Vieussens … Medical dictionary
loop — 1. A sharp curve or complete bend in a vessel, cord, or other cylindrical body, forming an oval or circular ring. SEE ALSO: ansa. 2. A wire (usually of platinum or nichrome) fixed into a handle at one end and bent into a circle at the other,… … Medical dictionary
