Izizathu zokuzalwa kwamawele

Kwiminyaka emininzi edlulileyo, ukuzalwa kwamabhinqa amabini okanye ngaphezulu ukusuka kwintombi kuye kwaqatshelwa njengento engaphezu kwemvelo, kodwa namhlanje oogqirha bafumene le nkcazo iinkcazelo ezininzi.

Izizathu zokuzalwa kwamawele zingaba ngolu hlobo:

1. Ubungcwele, kuba kwi-10% yeziganeko ezinjalo iintsana zivela kuloo ntsapho apho iwele zizalwe khona. Kule meko, yonke into ingachazwa ngokwemizimba yemvelo, njengokuba ibhinqa livelisa inani elikhulu lamahomoni, elikhuthaza ukuvuthwa kwamaqanda athile ngexesha elilodwa, ngaloo ndlela ukwandisa amathuba okukhulelwa kweentsana eziliqela kwangoko.
2. Ukupheliswa kwezinto zokukhulelwa komlomo ezithintela i-ovulation kunye nokuvuthwa kwenyanga kweesetyhini kubakhokelela ekukhululweni kweeseli eziliqela ngexesha elilodwa, ngokukodwa ngenyanga yokuqala, njengoko umzimba uzama "ukubamba".
3. Unyango lwentsholongwane kunye neziyobisi ezikhuthaza i-ovulation, linika impembelelo efanayo.
4. Xa usebenzisa i-vitro fertilization, abafazi "bahlwayelwe" ama-embryo amaninzi kwangoko kunye nokwandisa amathuba okukhulelwa, kwaye kwenzeka ukuba yonke into okanye ininzi yale mibungu iqala ukuphucula ngempumelelo kwisibeleko.
5. Impawu zengqondo zomama, ngokukodwa, i-bifurcation ye-uterus, kunokukhokelela ekukhulelweni kwamawele.
6. Ubudala bomama, njengokuba sele esemdala, ithuba elikhulu lokuzala amawele.
7. Ukuhanjiswa okuphindaphindiweyo, njengoko ukukhulelwa okutsha kunokwenzeka ukuba kubangele ukuzalwa kwamawele. Ukuba ibhinqa sele ivelise ezimbini iintsana, ke oku kwenzeka ukuba kabini.

Ukongezelela, uphando lubonisa ukuba ngexesha leemfazwe kunye nokuhlaselwa kweentlalo, ixesha lokuzalwa kwale ntsana landa. Le nyaniso ayifumani inkcazo, kwaye izazinzulu zicinga nje ukuba indlela yokugcina uluntu usebenza ngale ndlela.

Kunokuqatshelwa ukuba zonke izizathu zingentla zikwenza ukuba kwenzeke ukuba uchaze ukuba kutheni amawele avela-ngokungafani nezingane, ngamanye amaxesha nakwezesondo ezahlukeneyo. Ngelo xesha, inzululwazi ayinako ukuchaza ukuba kutheni abantwana abafana nabo bazalwa (amawele eqiniso).

Ziziphi iwele?

Ngoko, ngokungcola kwendalo yonke, abantwana abasoloko babonakala njengamanye amanconsi amanzi. I-Gemini ingaba yi-dizygotic kunye ne-monozygotic, eyahlukileyo komnye ngomnye umbane.

Iintsana ze-Dizygotic zizalwe xa amaqanda amaninzi azaliswa ngexesha elifanayo nge-spermatozoa eyahlukeneyo, ngoko ke ngaphandle bahluke ngokupheleleyo kwaye banokuba neentlobo ezahlukeneyo zesini.

Iimbangela zokubonakala kweewele ezi-monozygotic (ezifanayo) zilandelayo: enye inambuzane ixiliswe enye imbuto, kodwa emva kwexeshana (ukususela kwiintsuku ezi-2 ukuya kwi-12) i-zygote yahlula yaba ngamibini (kwaye ngamanye amaxesha). Yingakho ezi ntwana zihlala zifana ngokufanayo, zofuzo, ngaphandle nangokwezesondo. Oogqirha babona umzekelo onomdla, equlethwe kwinto yokuba ngaphambili ukwahlukana kwe-zygote kuqala, okungaqhelekanga kuya kuba bantwana abathnoyaytsevyh.

Amawele e-Siam kunye nezizathu zokubonakala kwazo

Isizathu sokuzalwa kwamawele ka-Siam zilandelayo: xa elinye iqanda lifakwe kunye ne-spermatozoon kwaye kamva, emva kwexesha leshumi elinesibini emva kokuchumisa isahlulo sesahlulo sesibini, kwenzeka ukuba ii-embryus zinexesha lokuhlukana ngokupheleleyo, sele ziqalise ukuphuhliswa komntu ngamnye. Kule meko, bahlala beqhotyoshelana ngomnye okanye enye inxalenye yomzimba (le nto inokuba yintloko, isisu, izitho, ubuso).