Vieussens annulus

Vieussens annulus
1. limbus fossae ovalis. 2. ansa subclavia.

Medical dictionary. 2011.

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  • Vieussens — (spr. Wiössang), Raymund von V., geb. 1641 bei Rouerque, wurde 1671 Arzt am Hospital St. Eloy zu Montpellier, 1688 Arzt in Paris, erhielt später von Ludwig XIV. eine Pension u. wurde dann Arzt der Frau von Montpensier, kehrte jedoch nach deren… …   Pierer's Universal-Lexikon

  • 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

  • ansa subclavia — ansa sub·cla·via an sə .səb klā vē ə n a nerve loop of sympathetic fibers passing around the subclavian artery * * * [TA] subclavian loop: nerve filaments that pass anterior and posterior to the subclavian artery to form a loop interconnecting… …   Medical dictionary

  • 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

  • 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

  • velum — noun 1. a muscular flap that closes off the nasopharynx during swallowing or speaking • Syn: ↑soft palate • Derivationally related forms: ↑velar • Hypernyms: ↑flap • Part Holonyms: ↑palate, ↑ …   Useful english dictionary

  • velume — ▪ I. ‖ velum (ˈviːləm) Pl. vela (ˈviːlə). [L. vēlum a sail, awning, curtain, covering, veil.] 1. † a. A screen or protection. Obs. Priestley in Young Autobiogr. (1898) v. 99 A glass velum, interposed between the retort and the recipient for the… …   Useful english dictionary

  • velumne — ▪ I. ‖ velum (ˈviːləm) Pl. vela (ˈviːlə). [L. vēlum a sail, awning, curtain, covering, veil.] 1. † a. A screen or protection. Obs. Priestley in Young Autobiogr. (1898) v. 99 A glass velum, interposed between the retort and the recipient for the… …   Useful english dictionary

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