Ziziphi iinguqu ezizalelwa kwiiveki ezingama-19?
Ngalona xesha, uphawu lokuba umntwana lu malunga ne-13-15 cm, kwaye ubunzima bomzimba wakhe buhluka phakathi kwe-200 g. Ukuqokelela kwamafutha angaphantsi kwamanzi kuyaqhubeka. Oku, kunoko, kuncedisa ekukhuleni kobunzima bomzimba wengane ezayo.
Ukuphatha kunye nemilenze yomntwana omncinane ngeli xesha ufumana ukulinganisela okufanelekileyo. Ngaloo ndlela, ubude besikhumba se-fetal ngu-3 cm, kunye ne-shin - 2,3.
Ngokuphathelele utshintsho lwangaphandle, ii-auricles ziba zihluke ngakumbi. Kulo nqanaba ukuba okubizwa ngokuba ngama-embrosi wamazinyo asisigxina.
Izitho kunye neenkqubo zomzimba ziyaqhubeka nokuphuculwa. Inkqubo ye-excretory isebenza. Ngomzuzu omnye, iizintso zivelisa malunga ne-2 ml yomchamo, ogqithiselwe kwi-amniotic fluid.
Ukuthetha malunga nento eyenzekayo kwiveki ye-18-19 yokukhulelwa, asikwazi ukushiya ukukhankanywa kwinkqubo yesantya. Ngoko, ukudibanisa phakathi kwayo kunye nezakhiwo ze-muscular kuba nzima. Kungenxa yokuba ukunyakaza kweengcambu zengane kuzuza ubuncinane.
Umama ozayo uza kuziva njani ngeli xesha?
Umgangatho we-uterine ngeli xesha u-2 cm ngaphantsi kwendoda. Isisu sisabonakala. Ngelo xesha, umfazi okhulelweyo uzuza ubunzima ngo-3.6-6.3 kg. Oku kuquka ubunzima bomntwana, i-placenta, i-amniotic fluid, uterus, umthamo wegazi okongeziweyo.
Umama ozayo ngeli xesha, njengommiselo, uziva kakuhle. Ukubonakaliswa kwe-toxicosis ngeli xesha liphela ngokupheleleyo, ngoko abaninzi abafazi abakhulelweyo bayigubha inkululeko kwaye baqala ukuvuyela isikhundla sabo esihle, becinga iimvumba zabo zekamva.