Nangona kukhwabanisekile kwaye kukholelwa ukuba kwiiveki ezimbini ukukhulelwa akukaze kwenzeke (ukukhulelwa kwangempela akubalanga njengokukhulelwa), i-embryo kwiiveki ezi-2 sele iqala ukuhlala ubomi bayo kwaye iphucule ngokwexesha layo. Emva koko, ukususela kwiiyure zokuqala zokukhulelwa, iqanda le-fetal liye laphuhlisa ingqalelo.
Ngokukhawuleza emva kokuchumisa kweqanda, okwenzeka kwi-tube fallopian, i- zygote- iqanda elikhulelweyo liqala ukwahlukana . Emva kokuba wenze indlela ehamba ngayo kwibhulophu yokulala, ngosuku lwesine umkhuhlane we-fetal uphenduka ube yi-blastocyst. Kwisisu sesisu, i-blastocyst isondela kwisiza sokufakelwa kwe-egg-insertion kwisisu, le nkqubo ihlala malunga neentsuku ezimbini. I-egg ngeli xesha lihlala kwi-membrane ye-mucous ye-uterus kunye ngoncedo lwe-chorionic villi ngokuqhotyoshelweyo ngokuqinileyo kwi-uterus.
Umbungu womntu uneminyaka e-2 ubudala
Umbungu womntu, oneminyaka engama-2 evekini, usebhodini leGraaf. Akazange atshintshe emva kwenkqubo yokukhulelwa, sele sele esungule izitho zengqungquthela-i-amnion, i-chorion, i-yolk sac, enika ngazo zonke iimeko ezifunekayo zokuphuhlisa phambili. Kwiiveki ezi-2, i-fetus yenza i-nuclei yeseli kunye ne-cytoplasm. Ekupheleni kweveki ezi-2, i-embryo iba liqanda elivuthiweyo, elinesisucleus esakhiwe yi-cytoplasm, i-shell ebonakalayo ebonakalayo, kwaye "ihlotshiswe" ngesithsaba seeseli ze-epithelial.
Iiveki ezi-2 zesisu - ubungakanani besisu
Njengoko uphando lubonisa, ubukhulu bombindi kwiveki 2 alunakwenzeka ukulinganisa, kunye nobukhulu bentsana kwiiveki ezimbini. Ubungakanani bokuqala, obunokumiselwa - 0.15 mm, kubhalwe kwiveki yesithathu yokukhulelwa, kunye nobunzima - 1 g - kuphela ngeveki 8.
Ukuphuhliswa kwe-fetus kwiiveki ezimbini
Ukuze uqhubeke nokukhulelwa, kuyimfuneko ukulandela irejimeni yokusela, urhulumente wokutya, okokuthi. kunika umntwana ozayo ngezinto zonke eziyimfuneko ekuphuhliseni kakuhle. Ngaphantsi kweemeko ezingafanelekanga ukuphuhliswa kombungu oneminyaka engama-2 engabinakunyuswa kwaye uza kuza kunye nokuya esikhathini. Yaye loo mfazi akaze azi ukuba ukhulelwe. Iimeko ezinjalo ezingenakulungeleka zingabangela uxinzelelo, ukwenziwa komzimba, amayeza.
Umntwana ubonakala njani njengeveki ezimbini?
Ukufumanisa, kwanele ukwenza i-ultrasound engayi kubonisa kuphela indlela i-embryyo ibheka ngayo, kodwa ichane ngokuchanekileyo ubude bokukhulelwa. Nangona i- embryo ingabonakaliswa , kwixesha le-ultrasound kunokwenzeka ukucacisa intlawulo yenhliziyo.
Ingqumbo isele iqaphele iintsuku eziyi-14, izitho zayo ezibalulekileyo zenziwe, intliziyo yayo iya kuviwa. Oku akusiyo nje imbungu. Lo ngumntwana wakho ozayo, oza kuzalelwa kwiiveki ezingama-38.