Kubasetyhini, umjikelezo wesini uquka izigaba eziliqela. Eyokuqala kwezi zinto kuthiwa isigaba sesilandela, ukususela kwixesha elibonisiweyo kwi-follicles i-oocytes ekhulile kwiifollicle. Emva koko lesi sigaba sidlulela kwi-ovulatory, kwaye emva kwayo-kwisiqendu.
Ubude beSigaba
Ukuqala kwesigaba sesilandeleko ngumhla wokuqala wokuya esikhathini, oko kukuthi, xa lo mfazi ebona ukukhutshwa. Ixesha layo lichongiwe lixesha lokuvuthwa okupheleleyo kwesalula esisodwa. Ngamanye amaxesha kukho ezimbini okanye ngaphezulu, kodwa iimeko ezinjalo azifaneki. Isigaba sesilandela sigqityiwe nge-ovulation. Ubude balo buyahluka. Ngokuqhelekileyo ubude besi sigaba somjikelo wesetyhini sinquma ukulibaziseka kwimihla. Ngokomzekelo, kwiimeko apho ubugqwetha bukhula kancinci okanye abuvuthanga konke (ngoko isigaba somzimba ophuzi sibonakala sisigxina kakhulu).
Into ebalulekileyo echaphazela ubude benkqubo yokunikezelwa ngokwenyama yithuba elifunekayo lokuba umzimba ufikelele kumlinganiselo omkhulu we-estrogens egazini. Ezi-estrogens ezinje njenge-estriol kunye ne-estrone azixhomekekanga kumzimba wesetyhini. Bandakanyeka ekuvuseleleni ukugcinwa kwemfihlo yomlomo wesibeleko - indawo eyimfuneko kakhulu yokutya kunye nokunyakaza kwe-spermatozoa. Ngokuqhelekileyo, ekupheleni kwesigaba sosilandelelwano, le ngqungquthela ifana nokufana neproteyini eluhlaza yeqanda - efanayo, e-elastic and transparent. Ukuba le ntumbane ayikho, i-spermatozoa, ngelanga, iya kufa. I-Estrogens nayo inegalelo ekukhululeni ngokukhawuleza kwe-hormone ye-luteinizing. Kwiintsuku ezimbini ukuya kwezine emva koko, i-ovulation ivela ngokwayo. Kulo lukhuni olubukhali lwamahommoni aninzi iimvavanyo ezikunceda ukucacisa intsingiselo ye-ovulatory esekelwe. I-Estrogens ikhuthaza ukukhula nokuhlaziywa kwe-endometrium, ilungiselela isisu ngenxa yesenzo se progesterones. Ukongeza, banciphisa ubushushu bomzimba.
Ukugqitywa kwesigaba sesilandelelwano kuthetha ukuba inqanaba lomnxeba we-estrogen lifikelele emngceleni, kwaye liphuka, elikhokelela ekugqibeleni. Ngokuqhelekileyo, kukholelwa ukuba isigaba esilandelayo salo mjikelezo kukulungelelaniswa kwimizimba yabasetyhini yokukhulelwa kwangaphambili.
Iintlupheko kunye neentsholongwane
Ubude besigaba sesilandela singatshintsha kwezinye iimeko. Ukuba ulandelelwano luvuthisa ngokukhawuleza kunexesha eliqhelekileyo, isigaba sesilandela sincishiswe. Kule meko, ayikho enye into engafanelekiyo, kuba isigaba esilandelayo esilandelayo kwiimeko ezininzi azichaphazeli ukukhulelwa kunye nokukhulelwa okusemandleni.
Iimeko ezichasayo zikhula xa ubukhulu beli qanaba landa. I-follicle ivelisa ixesha elide, kwaye ngamanye amaxesha ayiphumelelanga nonke. Oku kwenza u-ovulation akwenzeke. Izizathu zokungabikho kwe-ovulation kwabasetyhini zinokuthi:
- khulelwa;
- lactation;
- ukupheliswa okanye ukusetyenziswa kwezidakamizwa ezine-hormone;
- ebusheni;
- ukuphuma kwesisu;
- ukusilela kwehomoni .
Izifo ezahlukeneyo, utshintsho lwemozulu, ukuhamba, imidlalo yezobugcisa, uxinzelelo, ukukhuluphala okanye ukulahleka kwesisindo kunokukwazi nokuba nomphumo wesikhashana ngexesha lesilandelayo, okubangela ukuba ilahleke okanye iphumelele.
Ukuba ibhinqa ayinakho ukukhulelwa, emva kokuphazamiseka kwesigaba se-ovulation kunye nesigxina, esusela kwiintsuku ezili-10 ukuya kwezi-12, umzimba ophuzi umise umsebenzi wawo. Umgangatho weprogesterone, i-estrogen iyancipha ngokukhawuleza, nto leyo eyenza i-prostaglandin iququzelelwe. Isibeleko siqala ukuvumelwano, ukuphawula kwintsimi kubonakala kwiinqanawa. Ezi ziqhamo zihamba kunye nokulahlwa kwezinto ezimbini zangaphandle ze-endometrium. Emva koko uqala isigaba esilandelayo esilandelayo, esibonisa ukuqala komjikelezo omtsha wokuhamba.