I-fetus ikhula kanjani?
Kumele uqaphele ukuthi ezinkingeni zikhona imiqondo emibili: i- embryonic kanye ne-obstetric term. Owokuqala uvela ekukhulelwe, okwesibili kungukuqala kokuya esikhathini. Ngakho-ke, kukhona umehluko wamasonto amabili phakathi kwabo (ngokwesilinganiso).
Iqanda lezithelo emavikini angu-4 kusukela ekukhulelwe lincane kakhulu, kanti ubukhulu balo abudluli 5-7 mm ububanzi. Uma sikhuluma ngomntwana ozayo, khona-ke kulesi sikhathi ngisho nangaphansi, kuphela 2-3 mm.
Emasontweni ama-4 kusukela ekukhulelwe, umbungu unomthelela wokuhlukana kwezicubu ezizayo. Ngalesi sikhathi, kunamaqabunga amathathu e-embryonic.
Ingqimba yangaphandle - i-ectoderm, iphakamisa, okokuqala, ohlelweni lwezinzwa zezingane ezizayo. Ophakathi nendawo i-mesoderm, kuthatha ingxenye esebenzayo ekwakheni isifuba se-fetal, izicubu zayo, kanye negazi.
I-Endoderm, futhi, ibe yinkimbinkimbi, ihlanganisa izinhlelo eziqondile zezinhlaka, izakhiwo ezihlukene ze-anatomical. I-fetus yesikhathi esizayo emasontweni angu-4 kusukela ekukhulelwe isivele ine-embryo yesimiso senhliziyo. Njengoba iqhuma ithubhu yenhliziyo. Ukulungiswa kwezingqinamba zalo kungenzeka ngosizo lomshini we-ultrasound ngalesi sikhathi.
Ngokwehlukana kuyadingeka ukuthi usho mayelana nesakhiwo esibaluleke kakhulu se-anatomical njenge-placenta. Ngalesi sikhathi lapho uqala khona ukuqala. Khumbula ukuthi ukuvuthwa kokugcina kubonakala kuphela ngeviki lama-20.
Umama wesikhathi esizayo uzizwa kanjani?
Ezimweni eziningi, okwamanje owesifazane uthola ngesimo sakhe. Isivivinyo esenziwe esikhathini esinjalo sibonisa umphumela omuhle.
Owesifazane uphawula ukubonakala kwezibonakaliso zokuqala zokukhulelwa: ukuthukuthela, ukuguquka kwemizwelo ebukhali, isizungu, isicanucanu ekuseni.