Yenzeka ka esibelethweni

Ngemva isidoda ufinyelela amashubhu fallopian, lihlangabezana iqanda, ubhubhisa lesi elingenamikhono protein ne sishunyekwe. Ngakho kokukhulelwa senzeka, okuyinto ekuqaleni indlela yentuthuko umbungu. Ngemva kokuhlangana, impahla zoyise komama kwakhiwa amaqanda avundiswa - umntwana ongakazalwa. Ovum sihamba isigaba ethile yentuthuko, libhekene izinguquko ambalwa kanye qualitative. Kodwa ukuze uyothuthukisa ukuthuthukiswa we esibelethweni sekungenzeka, kudingeka medium izakhi, okuyindawo phezu Ezinyangeni eziyisishiyagalolunye ezalandela uzobe izakhi wathola. konemimoya enjalo iba kwesibeletho.

Ngakho, iqanda avundiswa ku amashubhu fallopian yehla ngqo esibelethweni. Lokhu kwenzeka ngenxa yokubakhona villi ezincane ngaphakathi amashubhu fallopian, okuyinto ukukhuthaza esibelethweni. Uma amashubhu fallopian kukhona pathologies (ukuvuvukala, amajika), zokwakha umzila we esibelethweni itsatfwa eziyinkimbinkimbi, ngoba indlela esibelethweni kuyinkinga. Kulokhu, iqanda avundiswa zingase zephuze ku amashubhu fallopian futhi enamathiselwe lapho. Lesi senzakalo ngokuthi i ethunjini (amashubhu esibeletho) sokukhulelwa futhi edinga wezokwelapha.

Ngokuvamile, lapho isakhiwo evamile kuzo ngemibhobho fallopian avundiswa Iqanda esibelethweni uwela ezinsukwini ezine. Ngalesi sikhathi, kuba esigabeni Morula, kodwa uma lingena kwesibeletho - esigabeni i-blastocyst. Lesi sigaba libhekene iqiniso lokuthi iqanda eselivundisiwe ilungele izinguquko ezintsha. Blastomeres izinhlamvu ziqala ukwakheka embryoblast - ingxenye ezoqhubeka ukuthuthukisa umbungu, bese ingxenye yesibili kwamaseli - the trophoblast - wabo uyomenzela ukudla Iphakheji amaqanda (ingxenye ukuyedlula yonke le trophoblast kamuva abe umzanyana).

Kulesi sigaba of zokwakha we esibelethweni isiqala nje. Ngaphansi kwethonya ukushintsha kwama-hormone kuso bese silungiselela kwesibeletho. Ngemva follicle okuncane, kwakheka luteum Corpus is, ukukhulula kakhulu progesterone, futhi omncane - estrogen. It amasignali progesterone kwesibeletho ulwelwesi lwamafinyila we isidingo sokulungiselela embhedeni wakhe. Izinguquko kuqala esibelethweni izinga endometrial - ibizwa ngokuthi ngesikhathi sokukhulelwa decidua. Uyini umehluko phakathi endometrium entsha? Isici esiyinhloko we endometrium - ekuqongeleleni at compounds yayo mkhulu bioactive ukuthi ukuncelisa umbungu. Lokhu glycogen, mucopolysaccharides, lipids, nosawoti kanye ukulandelela izakhi, ama-enzyme, immunoglobulin, ayisiza - bonke kubalulekile zokwakha we esibelethweni baqhubeka nentuthuko egcwele umbungu. Kwezinye izimo, lapho kukhona ukukhubazeka ku endometrium kanye nokwenza imisebenzi yayo, owesifazane isikhathi eside angeke abakhulelwayo, futhi ngezinye izikhathi ziba nenzalo.

Ngo evamile esibelethweni endometrium yenzeka ihlala cishe izinsuku ezimbili. Phakathi nalesi sikhathi, endaweni lokunamathelisa (nidation) dilates imithambo yegazi, endometrium uqweqwe. Lezi zinguquko abonisa ukuthi kwesibeletho ilungele ukwamukela i-blastocyst. Lapho kwamanzi lo esibelethweni ku ukushuba we endometrium Kunjengokungathi wasibekela le villi kwesibeletho. Ngezinye izikhathi kungase lokhu okunamathiselwe ephelezelwa ukopha ezincane, okungase aphanjaniswe ekuqaleni nyangazonke ngasekupheleni. Nokho, inani legazi incane kakhulu - amaconsi ambalwa noma endaweni encane, bese lokhu "opha" imisiwe. Zokwakha umzila we esibelethweni, izimpawu zazo akuzona owesifazane perceptibility, indlela kuphela izenze wazizwa, njengoba kwenzeka phakathi umjikelezo, ngemva nge-ovulation, kodwa namanje kude ukuqala menses. Uma abesifazane banakekele bophulwe futhi wazi isikhathi nge-ovulation, cishe abanye bayothambekela nakakhulu ekuthululeni bathemba ukuthi abakhulelwe yini. Babembalwa abantu besifazane zokwakha we esibelethweni, umuzwa noma ngayiphi indlela avele ngesikhathi yenzeka. Ngezinye izikhathi bazizwa ukuluma, isicanucanu, umuzwa wobukhulu. Nokho, kungukuthi okubangelwa yenzeka uqobo, futhi ukushintsha kwama-hormone emzimbeni.