Njengoba kokukhulelwa kwenzeka?

Njengoba kokukhulelwa kwenzeka? Ngisho yishumi edlule lokhu babeyogcina, kodwa manje ngosizo supertechnologies lezi izinqubo Lingase ukubonwa.

Ukuze uqale, ake ekuqaleni inqubo - nokuvuthwa of oocytes. Evuthwa e ezikhiqiza amaqanda, okuyinto bondliwe nokondliwa nazo zonke izinto ezidingekayo. Siyabonga kubo, kuvusa inqubo yokukhula kanye nokuvuthwa we oocytes. Budebuduze ngemuva kanye follicle ozungezayo iqanda - liphinde ezikhulayo ngentshiseko, futhi Ukuvutha futhi ukukhishwa iqanda ku ngaphakathi komgodi ongaphakathi kwamathumbu ifinyelela osayizi abathile bezingubo. Ngalesi sikhathi, izimpawu uhlelo hormone insephe uphondo kuzo ngemibhobho fallopian ukuthi iqanda isivele futhi sekuyisikhathi sokuba "abuyele emhlanjini." Uphondo, efana vacuum cleaner, iyehla iyenyuka yayo fibre edonsela iqanda tube fallopian. Uma nganoma isiphi isizathu isidoda neqanda kungukuthi phambili ngo kwesibeletho, kodwa bahlale ipayipi ke lokhu kubizwa ngokuthi ukukhulelwa esibeletho noma ethunjini. Lokhu anomaly, lapho ngesikhathi ukukhula kwe-zygote tube uyadabuka, ngakho odokotela isuswe umbungu ezinjalo.

I tube fallopian ngokuvamile kakhulu iqanda nesidoda ihlangabezana futhi inqubo kokukhulelwa. Le nqubo kakhulu isikhathi ebucayi, kusukela iqanda uhlala cishe ngosuku, nesidoda uthola endaweni siyazise cishe amahora ayisithupha.

Phakathi nalesi sikhathi-ke uthole kuphela eziqine, isidoda iphila kunazo. Endleleni behlangabezana inqwaba izithiyo. Omunye wabo - the isikhwehlela wesibeletho, okuyinto kuba ohlabayo e ukungaguquguquki ngesikhathi kukhululwa neqanda. Yingakho abesifazane bazizwe ngesikhathi nge-ovulation ukwanda umswakama lwesitho sangasese sowesifazane, inombolo inkudlwana yokukhanya osenyameni okusobala. Ngezinye ichopho ekhanda isidoda kukhona izinto ezikhethekile ukuthi chaza odongeni amaqanda. Ngaphambi kokukhulelwa kwenzeka laba basebenzi nihlanganyele kanye indlela ivulekile owangaphakathi isidoda. Esikhathini ividiyo, kuyenzeka fast ngokwanele, uma isidoda ku iqanda basonta ezinyakazayo yabo Kuvunguza nomsila. Loku umbungu ifomu ekuseni - zygote. Kakade ngalesi isidoda esiteji, ukuhlanganisa ndawonye, uletha-chromosome 23 kolwazi yofuzo, okusho ndawonye nalo lonke chromosome Iqanda ziyonquma ukuqhubeka umbungu. Lapho isidoda ukungena iqanda, igobolondo kuba ayazika, okuyinto evimbela Ukungena okwengeziwe kwesidoda.

Uma kokukhulelwa kwenzeka, uhlelo hormone ukuphendula ngokushesha izimo ezishintshayo. Umzimba uthola isignali ukukhulelwa livelile. Kungenzeka yini ukuba uzizwe kokukhulelwa? Kungakhathaliseki it kwakuzwakala nokhahlo kanjani, kodwa neze okwamanje ukukhulelwa, umzimba akazi ngakho. Kwaze kwaba yilapho sebeshiye kuyoba nezinye izinyathelo, isidumbu sowesifazane uzoqala ukuzizwa izimpawu zokuqala zokukhulelwa.

Uma kokukhulelwa livelile evamile, lo zygote yehla tube fallopian ukuba kwesibeletho, okuyinto ngaphansi kwethonya hormone ukulungiselela kakade ukuthola umbungu. Kuthatha cishe ezinsukwini eziyisithupha, futhi zygote "ekhetha indawo" izinsukwana zisesesibelethweni. Endometrium okwamanje isibe ngempela awugqinsi, okuxekethile - kunoma iyiphi indawo isilungile ukuthatha zygote. Ezimweni eziningi, kuxhunywe odongeni phambi noma ezingemuva kwesibeletho, futhi ngemva kwenye zygote ngesonto egxilile ngokuphelele ungqimba umama yotshwala. Sonke lesi sikhathi i-embryo ibizwa bondliwa lokho kwakhiwa follicle Iqanda - nenzuzo izakhi - amafutha kanye amaprotheni. Uma kokukhulelwa kwenzeka, futhi axube kwesibeletho, placenta ucala kutfutfukisa kanye iqala inyanga ayisishiyagalolunye- isikhathi sokukhulelwa ka enganeni.