perivitelline space


perivitelline space
peri·vi·tel·line space .per-ə-vī-'tel-ən-, -.ēn-, -.īn- n the fluid-filled space between the fertilization membrane and the ovum after the entry of a sperm into the egg

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in mammals, a fluid-filled space between the plasma membrane of the oocyte and the zona pellucida; in many other animals, one separating the plasma membrane of the egg from the fertilization membrane (e.g., amphibians) or chorion (e.g., fish).

Medical dictionary. 2011.

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  • perivitelline space — perivitelline space. См. перивителлиновое пространство. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • perivitelline space — the fluid filled space between the embryo and chorion of an egg. The width varies between fish groups and so can be used in identification …   Dictionary of ichthyology

  • perivitelline space — “+... noun Etymology: peri + vitelline : the fluid filled space between fertilization membrane and ovum after the entry of a sperm into the egg …   Useful english dictionary

  • space — 1. noun /speɪs/ a) The intervening contents of a volume. If it be only a Single Letter or two that drops, he thruſts the end of his Bodkin between every Letter of that Word, till he comes to a Space: and then perhaps by forcing thoſe Letters… …   Wiktionary

  • space — Any demarcated portion of the body, either an area of the surface, a segment of the tissues, or a cavity. SEE ALSO: area, region, zone. SYN: spatium [TA]. [L. spatium, room, s.] alveolar dead s …   Medical dictionary

  • перивителлиновое пространство — perivitelline space перивителлиновое пространство. Пространство между зародышем и яйцевой оболочкой, заполненное специфической жидкостью; возникает при активации яйца и сохраняется до вылупления зародыша предотвращается полиспермию, защищает… …   Молекулярная биология и генетика. Толковый словарь.

  • Regional specification — In the field of developmental biology, regional specification is the process by which different areas are identified in the development of the early embryo. The process by which the cells become specified differs between organisms. Contents 1… …   Wikipedia

  • Corona radiata (embryology) — Human ovum examined fresh in the liquor folliculi. The zona pellucida is seen as a thick clear girdle surrounded by the cells of the corona radiata. The egg itself shows a central granular deutoplasmic area and a peripheral clear layer, and… …   Wikipedia

  • subzonal insemination — (Suzi) a method of assisting conception in cases of infertility caused by the inability of the spermatozoa to penetrate the barriers surrounding the ovum. Using in vitro fertilization techniques, a small number of spermatozoa (no more than six)… …   Medical dictionary

  • Myometrium — Uterus and uterine tubes (Myometrium labeled at center right) …   Wikipedia