membrane vitelline

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• Vitelline duct — Fetus of about eight weeks, enclosed in the amnion. (Vitelline duct labeled at lower right.) …   Wikipedia

• vitelline — ● vitellin, vitelline adjectif (latin vitellus, jaune d œuf) Qui se rapporte au vitellus ; qui le contient. ● vitellin, vitelline (expressions) adjectif (latin …   Encyclopédie Universelle

• vitelline membrane — n a membrane enclosing the egg proper and corresponding to the plasma membrane of an ordinary cell * * * the cytoplasmic, noncellular membrane surrounding an oocyte …   Medical dictionary

• Vitelline — Vi*tel line, a. [L. vitellus the yolk of an egg.] (Biol.) Of or pertaining to the yolk of eggs; as, the vitelline membrane, a smooth, transparent membrane surrounding the vitellus. [1913 Webster] …   The Collaborative International Dictionary of English

• Vitelline membrane — Infobox Embryology Name = Vitelline membrane Latin = m. vitellina GraySubject = 5 GrayPage = 45 Caption = Caption2 = System = CarnegieStage = Days = Precursor = GivesRiseTo = MeshName = Vitelline+membrane MeshNumber = A16.631.886 DorlandsPre = m… …   Wikipedia

• membrane — 1. A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. SYN: membrana [TA]. 2. SYN: biomembrane. [L. membrana, a skin or m …   Medical dictionary

• vitelline membrane — noun Date: 1845 a membrane enclosing an egg that comprises the zona pellucida in mammals and that upon fertilization splits off from the surface of the egg forming a fertilization membrane in many invertebrates and amphibians and in some fish …   New Collegiate Dictionary

• vitelline membrane — a membrane, product of the ooplasmic surface which adheres closely to the outer boundary of the ooplasm, but as fertilization separates from the surface as a distinct membrane …   Dictionary of ichthyology

• vitelline — adj. of the vitellus. Phrases and idioms: vitelline membrane the yolk sac. Etymology: med.L vitellinus (as VITELLUS) …   Useful english dictionary

• vitelline membrane — noun : a membrane enclosing the egg proper and corresponding to the cell wall of an ordinary cell; especially : a membrane separated from the surface of the egg in many invertebrates immediately the egg is fertilized, thus preventing other… …   Useful english dictionary

• vitelline membrane — A membrane enclosing eggs of invertebrates located within an egg shell …   Dictionary of invertebrate zoology