Bangaki amaqanda owesifazane? Managing kanye Izici

Umzimba zesifazane ugcwele izimfihlo kanye nezici. Ngokungafani nabantu, umzimba wobulili bubuhle kungashintshwa cyclical. Lesi sihloko uzokutshela mayelana izici umzimba female. Uyazi ingakanani Iqanda sowesifazane. Futhi ukuthola amaqiniso ethakazelisayo ukuthuthukiswa kwe-gametes.

umzimba Female

Umzimba wobulili bubuhle wadala for ukuzala. Kuyinto kule nqubo ye ukuthatha ingxenye eyinhloko iqanda. Kuthiwa ukuvundisa kuyadingeka futhi gamete besilisa. Ngaso nje kwalapho kuhlangana khona izingxenye ezimbili ezakhiwe-embryo yoke, okuyinto kamuva iba umbungu.

Bangaki amaqanda owesifazane?

I ubulili umntwana selibekiwe mayelana 8 ngesonto ka esibelethweni. Kwakuphakathi nale nkathi amantombazane esizayo izinhlamvu ziqala ukwakheka ezikhiqiza amaqanda kanye esibelethweni. Kuze kube ngesonto 20 isibalo sabesifazane lukhula follicle. It ifinyelela isiqongo sayo emhlabeni phakathi nokukhulelwa. Bangaki amaqanda owesifazane ngaleso sikhathi? Ososayensi bathi inani gametes esikhathini kusuka 6 kuya kwezingu-8 million.

Ngaphezu kwalokho kukhona ephambene uguqule. gametes Female uqale ukukhethwa ukudlula. Ingxenye enkulu kubo zinyamalale. Ngu ngesikhathi sokuzalwa e ezikhiqiza amaqanda amantombazane kukhona abangaba yizigidi ezingu omunye follicle. Nokho, akuwona wonke bazokwazi ukuletha kuzuze izizukulwane ezaziyolandela.

Ukuqala ukuthomba

Bangaki amaqanda owesifazane okwaziyo zalisa? Eseneminyaka engaba ngu-12-17 intombazane ebhekene kokuya esikhathini okokuqala. Ngemva kwalokho, kungakapheli nonyaka owodwa isethwe umjikelezo zesifazane. Kusukela ngaleso sikhathi, abantu bobulili fair bangaba umama. Ngonyaka omama abanempilo livela ovulations 10 kuya ku-20. Phakathi nale nkathi yokuba wobulili fair unamaqanda mayelana 300,000. Nge ngenyanga ngalunye oludlulayo, lesi sibalo liyancipha.

Zidlala indima ebalulekile zokuzala izifo uhlelo. Uma owesifazane, ngoba noma ngabe yisiphi isizathu, kususwe ingxenye esibelethweni noma umzimba ngokuphelele, inani gametes uyakwazi kokukhulelwa, is kakhulu ziyancipha. Futhi, inani amaqanda ngayo inesandla hormone ahlukahlukene. Ngokwesibonelo, izinto zokuvimbela inzalo temlomo kuvimbela follicle nokuvuthwa kanye nge-ovulation iyama. Kungenzeka yini ngaleyo ndlela ukugcina ezinye amaseli? Odokotela nimphendule ngoyebo kulo mbuzo.

Ngokwezibalo, iminyaka engu-35 e-amaqanda e abesifazane imayelana ayizinkulungwane 25 amaseli. Uma kusukela ekuqaleni zokuthomba, wobulili bubuhle uzoqala ukuthatha izinto zokuvimbela inzalo temlomo, kukhona ithuba ukwandisa lesi sibalo.

nge-ovulation

Mangaki amaqanda owesifazane ukuvuthwa inyanga ngayinye? Konke kuncike impilo uhlelo zokuzala kanye nezici ezithile zofuzo.

Esikhathini owesifazane isilinganiso ngonyaka kufanele uphume esibelethweni amaqanda okungenani 10. Odokotela bayavuma ezimbili noma ezintathu anovulatory umjikelezo, hhayi elandelanayo. Kukhona kummeleli ubulili fair, ngubani kwelinye umjikelezo wokuya esikhathini uwubufakazi kungenziwa abelwe ezingaphezu kweyodwa gamete. Iningi ngokuvamile, lawa ladies emkhayeni ngubani abanolwazi ukuzalwa ezimbili noma ngaphezulu izingane ngesikhathi esifanayo.

lokukhulelwa

Indlela elivundisiwe esibelethweni besifazane? Ososayensi abakubiza ngokuthi isikhathi kusuka amahora ambalwa ukuze izinsukwana.

Kuyaphawuleka ukuthi isidoda ikani bukhoma e sowesifazane umzimba kuze kube phakathi neviki elilodwa. Ngakho akukhona njalo contact ezidingekayo ngesikhathi nge-ovulation ukuze sithele. gametes Male ungalinda follicle ukudabuka e le fallopian amashubhu, Izitho zokuzala noma umsele wesibeletho. Uma-ovulation kwenzeka, futhi ingqamuzana ukhululeka follicle, isidoda lingena kuwo.

Izici isakhiwo lwegciwane amaseli

Bangaki-chromosomes e Iqanda womuntu? Odokotela bathola yokuthi njalo ngenyanga owesifazane bukhicite ezahlukene isakhiwo kanye nokuqukethwe kwamaseli. Ngakho, ngo-evamile gamete ngokocansi luqukethe Ama-chromosomes e-24. Lawa Iqanda zenzeka ezimweni eziningi. Nokho, uma ukukhiqizwa kwamaqanda livelile, okwaphumela out gamete inhlanganisela yezimpawu elikhulu lezakhi zofuzo, okungukuthi, ematfuba uma ingane syndromes sokugembula.

isiphetho

Manje uyazi amaqiniso ayisisekelo ezithakazelisayo mayelana amaqanda kanye nenombolo yabo. Okwamanje, odokotela baye basungula ukuhlolwa laboratory ezivumela ukuthola amaqanda amaningi indlela kwesokunxele e yomzimba wowesifazane. Ukuze wenze lokhu, kudingeka ukuthi zihlolelwe FSH, luteinizing futhi Anti-Müllerian hormone. Ucwaningo lwenziwa ngegazi emithambo yegazi kwaphela izinsuku eziningana. Lezi uzohlola isimo impilo umsebenzi zokuzala yanoma yimuphi owesifazane. Gcina ngaphansi kolawulo inani germ cells yabo futhi njalo uphilile. Inhlanhla kuwe!