- acrosome
- noun Etymology: International Scientific Vocabulary Date: 1899 an anterior prolongation of a spermatozoon that releases egg-penetrating enzymes • acrosomal adjective
New Collegiate Dictionary. 2001.
acrosome
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acrosome — [ akrozom ] n. m. • 1904; all. Akrosoma 1898; de acro et some ♦ Biol. Organite situé à l extrémité antérieure des spermatozoïdes. ● acrosome nom masculin Extrémité antérieure différenciée du spermatozoïde. acrosome n. m. BIOL Organite sécrété… … Encyclopédie Universelle
acrosome — acrosome. См. идиосома. (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.
acrosome — [ak′rə sōm΄] n. a thin sac usually at the head of a sperm cell containing enzymes which dissolve the protective layers of an egg cell acrosomal adj … English World dictionary
Acrosome — In spermatozoa (also known as sperm/sperm cell) of many animals, the Acrosome is an organelle that develops over the anterior half of the sperm s head. It is a cap like structure derived from the Golgi apparatus. Acrosome formation is completed… … Wikipedia
Acrosome — L’acrosome est un organite dont la membrane enveloppe partiellement le noyau du spermatozoïde. Celle ci se forme à partir des vésicules golgiennes (appareil de Golgi) lors de la spermiogenèse (passage de la spermatide ronde à la spermatide… … Wikipédia en Français
acrosome — A caplike organelle or saccule derived from the golgi that surrounds the anterior two thirds of the nucleus of a sperm cell. Within this cap are enzymes that are thought to facilitate entry of the sperm through the zona pellucida. [acro + G. soma … Medical dictionary
acrosome — n. the caplike structure on the front end of a spermatozoon. It breaks down just before fertilization (the acrosome reaction), releasing a number of enzymes that assist penetration between the follicle cells that still surround the ovum. Failure… … The new mediacal dictionary
acrosome — akrosoma statusas T sritis augalininkystė apibrėžtis Spermio galvutės priekyje esantis lazdelės pavidalo darinys. atitikmenys: angl. acrosome rus. акросома … Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas
Acrosome reaction — During fertilization, the acrosome reaction is the reaction which occurs in the acrosome of the sperm as it approaches the egg. The acrosome is a cap like structure over the anterior half of the sperm s head.As the sperm approaches the zona… … Wikipedia
acrosome reaction — a sequence of structural changes seen in spermatozoa in the vicinity of an oocyte in the uterine tube, believed to facilitate their entry into the oocyte: the outer membrane of the acrosome fuses at multiple points with the overlying plasma… … Medical dictionary
