Kwabesifazane, umjikelezo wokuya esikhathini uhlanganisa izigaba eziningana. Okokuqala kulesi sigaba kubizwa ngokuthi isigaba se-follicular, kusukela esikhathini esibonisiwe kuma-oocyte e-follicles avuthiwe kumapulisi. Khona-ke lesi sigaba sidlulela ku-ovulatory, futhi ngemva kwalokho - singene esigabeni esilandelayo .
Ubude besigaba
Ukuqala kwesigaba se-follicular kungukuqala kokuya esikhathini, okungukuthi, uma owesifazane ebona ukukhishwa. Isikhathi saso sinqunywe yisikhathi sokuvuthwa okugcwele kwesilandela esisodwa esiphezulu. Ngezinye izikhathi kunezinyanga ezimbili noma ngaphezulu, kodwa amacala anjalo ajwayelekile. Isigaba se-follicular sigcwaliswa ukuvuthwa. Ubude bayo bungaba buhlukile. Ngokuvamile isikhathi salesi sigaba somjikelezo wesifazane sinquma ukubambezeleka kokuya esikhathini. Isibonelo, ezimweni lapho i-follicle ikhula kancane kancane noma ingavuthwa nhlobo (ngakho isigaba somzimba ophuzi sibonakala ngokuhlala njalo).
Isici esiyinhloko esithinta isikhathi senqubo yokuhlinzeka ngokwenyama yisikhathi esidingekayo ukuba umzimba ufinyelele inani eliphakeme lama-estrogens egazini. Ama-estrogen anjenge-estriol ne-estrone ayengenakulinganiswa emzimbeni wesifazane. Bahilelekile ekuvuseleleni ukugcinwa kwemisipha yomlomo wesibeletho - indawo edingekile kakhulu ekudleni nokuhamba kwe-spermatozoa. Ngokujwayelekile, ekugcineni kwesigaba se-follicular, le-mucus ifana nokuhambisana neprotheyini eluhlaza yamaqanda - okufanayo okushelelayo, okunwebekayo nokucacile. Uma lesi sikhafu singekho, i-spermatozoa, ngeshwa, izofa. I-Estrogens iphinde iqale ekukhululweni okubukhali kwe-hormone ye-luteinizing. Ezinsukwini ezimbili kuya kwezine emva kwalokhu, ukuvuthwa kwenzeka ngokwayo. Kulokhu kuqhuma kwama-hormone okubukhali okuhlolwa okuningi okusiza ekunqumeni ukuphakama kwe-ovulatory kusekelwe. I-Estrogens ikhuthaza ukukhula nokuvuselelwa kwe-endometrium, ilungiselela isisu ngenxa yesenzo se-progesterones. Ngaphezu kwalokho, banciphisa izinga lokushisa komzimba.
Ukuqedwa kwesigaba se-follicular kusho ukuthi izinga elise-estrogen follicle selifikile emngceleni, futhi liphuphuka, eliholela ekuvuthweni. Ngokuvamile, kucatshangwa ukuthi isigaba se-follicular yomjikelezo ukulungiswa kwesilwane sesifazane sokukhulelwa okungenzeka.
Ukuphazamiseka kanye nezidakamizwa
Isikhathi sesigaba se-follicular singashintsha kwezinye izimo. Uma i-follicle ivuthisa ngokushesha kunokujwayelekile, isigaba se-follicular sifushane. Kulesi simo, azikho ezinye izinto ezingavamile, ngoba isigaba esifushane se-follicular ezimweni eziningi asithinteki ukuvuthwa nokukhulelwa okulandelayo.
Isimo esivela phambili siqala lapho isikhathi salesi sigaba sanda. Ngakho-ke le follicle ivuthwa isikhathi eside, futhi ngezinye izikhathi ayivuthwa nhlobo. Lokhu kwenza ukuvunguza kungenzeki. Izizathu zokungabikho kwe-ovulation kwabesifazane kungaba:
- ukukhulelwa;
- i-lactation;
- ukuqeda noma ukudla kwezidakamizwa ezine-hormone;
- ubusha;
- ukusa esikhathini;
- ukuhluleka kwe-hormonal .
Izifo ezihlukahlukene, ukuguquka kwesimo sezulu okungazelelwe, ukuhamba, ezemidlalo, ukucindezeleka, ukukhuluphala noma ukulahlekelwa isisindo kungabuye kube nomthelela wesikhashana ngesikhathi sesilandelayo, okwenza kube khona noma kuphele isikhathi eside.
Uma owesifazane engenayo ukukhulelwa, ngemuva kokuhamba kwe-ovulation kanye nesigaba sokuthi u-luteal, ohlala ezinsukwini eziyishumi kuya kwezingu-12, umzimba ophuzi omile uqeda umsebenzi wayo. Izinga le-progesterone, i-estrogen liyehla kakhulu, okubangela ukuhlanganiswa kwe-prostaglandins. Isibeletho siqala ukuvumelanisa, ama-spasms abonakala ezitsheni. Lezi zenzakalo zihambisana nokulahlwa kwezingxenye ezimbili zangaphandle ze-endometrium. Futhi iphinda iqale isigaba esilandelayo se-follicular, esibonisa ukuqala komjikelezo omusha wokuya esikhathini.