{"id":13365,"date":"2022-05-03T10:00:39","date_gmt":"2022-05-03T08:00:39","guid":{"rendered":"https:\/\/gravida.com\/?post_type=blog&#038;p=13365"},"modified":"2025-06-19T22:11:49","modified_gmt":"2025-06-19T20:11:49","slug":"quand-et-comment-les-ovules-se-forment-ils","status":"publish","type":"post","link":"https:\/\/gravida.com\/fr\/blog\/quand-et-comment-les-ovules-se-forment-ils\/","title":{"rendered":"Quand et comment les ovules se forment-ils ?"},"content":{"rendered":"<p>Contrairement \u00e0 ce qui se passe chez l\u2019homme, le processus de m\u00e9iose des cellules germinales f\u00e9minines <strong>commence entre la 10<sup>\u00e8me<\/sup> et la 13<sup>\u00e8me<\/sup> semaine de d\u00e9veloppement du f\u0153tal<\/strong>, c&rsquo;est-\u00e0-dire dans l&rsquo;ut\u00e9rus de la m\u00e8re.<\/p>\n<p>Les cellules germinales sont les pr\u00e9curseurs des gam\u00e8tes f\u00e9minines (ovules) et contiennent le mat\u00e9riel g\u00e9n\u00e9tique qui sera transmis \u00e0 la g\u00e9n\u00e9ration suivante. La m\u00e9iose de ces cellules consiste en deux divisions cellulaires successives, \u00e0 partir d&rsquo;une seule cellule diplo\u00efde (\u00e9galement appel\u00e9e cellule souche du gam\u00e8te ou encore ovogonie).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-11129 aligncenter\" src=\"https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/resumen-ovogenesis.png\" alt=\"\" width=\"361\" height=\"248\" srcset=\"https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/resumen-ovogenesis.png 457w, https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/resumen-ovogenesis-300x206.png 300w, https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/resumen-ovogenesis-18x12.png 18w\" sizes=\"auto, (max-width: 361px) 100vw, 361px\" \/><\/p>\n<p>La premi\u00e8re division m\u00e9iotique de toutes les ovogonies est achev\u00e9e vers le 7<sup>\u00e8me<\/sup> ou 8<sup>\u00e8me<\/sup> mois de grossesse, de sorte qu&rsquo;au moment de la naissance, l&rsquo;ovaire contient des ovocytes primaires qui sont au dernier stade de la prophase I (diplot\u00e8ne). Chacun de ces ovocytes est entour\u00e9 de cellules de la granulose, constituant les follicules primordiaux.<\/p>\n<p>\u00c0 partir de la pubert\u00e9 et tout au long de la phase de maturit\u00e9 reproductive, certains follicules primordiaux et leurs ovocytes primaires vont \u00e9voluer \u00e0 chaque cycle menstruel, jusqu&rsquo;\u00e0 former un follicule mature et lib\u00e9rer un ovule par l&rsquo;ovulation. Ainsi, <strong>une femme na\u00eet avec toutes ses cellules reproductives potentielles<\/strong>. Celles-ci sont activ\u00e9es \u00e0 la pubert\u00e9 et sont consomm\u00e9es tout au long de la vie, jusqu&rsquo;\u00e0 leur \u00e9puisement, ce qui conduit \u00e0 la m\u00e9nopause.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11117 aligncenter\" src=\"https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/ovogenesis.png\" alt=\"\" width=\"786\" height=\"816\" srcset=\"https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/ovogenesis.png 786w, https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/ovogenesis-289x300.png 289w, https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/ovogenesis-768x797.png 768w, https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/ovogenesis-12x12.png 12w\" sizes=\"auto, (max-width: 786px) 100vw, 786px\" \/><\/p>\n<p>Nous esp\u00e9rons avoir r\u00e9pondu \u00e0 toutes vos questions sur la mani\u00e8re et le moment de la formation des \u0153ufs. Toutefois, nous serons ravis de vous recevoir pour r\u00e9pondre \u00e0 toutes vos questions si vous le souhaitez, en prenant rendez-vous au +34 932066489 ou par mail \u00e0 l\u2019adresse <a href=\"mailto:internacional@gravidabcn.com\">internacional@gravidabcn.com<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contrairement \u00e0 ce qui se passe chez l\u2019homme, le processus de m\u00e9iose des cellules germinales f\u00e9minines commence entre la 10\u00e8me et la 13\u00e8me semaine de d\u00e9veloppement du f\u0153tal, c&rsquo;est-\u00e0-dire dans l&rsquo;ut\u00e9rus de la m\u00e8re. Les cellules germinales sont les pr\u00e9curseurs des gam\u00e8tes f\u00e9minines (ovules) et contiennent le mat\u00e9riel g\u00e9n\u00e9tique qui sera transmis \u00e0 la g\u00e9n\u00e9ration [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":11122,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[138],"tags":[],"class_list":["post-13365","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-information-scientifique"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Quand et comment les ovules se forment-ils ?<\/title>\n<meta name=\"description\" content=\"Le processus de m\u00e9iose des cellules germinales f\u00e9minines commence entre la 10\u00e8me et la 13\u00e8me semaine de d\u00e9veloppement du f\u0153tal.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gravida.com\/fr\/blog\/quand-et-comment-les-ovules-se-forment-ils\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quand et comment les ovules se forment-ils ?\" \/>\n<meta property=\"og:description\" content=\"Le processus de m\u00e9iose des cellules germinales f\u00e9minines commence entre la 10\u00e8me et la 13\u00e8me semaine de d\u00e9veloppement du f\u0153tal.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/gravida.com\/fr\/blog\/quand-et-comment-les-ovules-se-forment-ils\/\" \/>\n<meta property=\"og:site_name\" content=\"Gravida\" \/>\n<meta property=\"article:published_time\" content=\"2022-05-03T08:00:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-19T20:11:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/gravida.com\/wp-content\/uploads\/2022\/05\/mujer-embarazada-barriga-scaled-e1651570240408.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Dra. 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