Eli bhinqa liziva liqala ukubonakala ngokugqithisileyo kwe-fetus ngeveki ye-20, esele icacile kwiiveki ezingama-22. Oku kubangelwa kukuba umntwana sele sele ekhulu kwaye emelekileyo kwiveki yama-22, ngoko "unokuthetha" nomama njengomntwana omdala: umntwana unako ukubonisa uxhalaba, ukwesaba okanye uvuyo.
Ngokuqhelekileyo, ngeveki 22, kubalulekile ukuqhuba i-ultrasound ye-fetus ehleliweyo, ngenxa yoko ugqirha unokukwazi ukucacisa oku kulandelayo:
- Ubukhulu beengxenye zomzimba zengane . Ngoluphando olunjalo, ubukhulu be-frontal-occipital kunye ne-biparietal yentloko kunye nokujikeleza kwayo kulinganiswa. Ukulinganisa ubude bamathambo omlenze kunye nomlenze ongezantsi, umxhelo kunye nomphambili kwimiba yomibini kunye nomjikelezo wesisu. Ukuba ubukhulu bentsana buyi-asymmetrical - oku kungabonisa ukulibaziseka kancinci ekuphuhlisweni.
- Inatomy of the fetus and malformations . Ukuchonga isimo sezitho ezibalulekileyo, ugqirha uhlola isibindi, imiphunga, ingqondo, intliziyo kunye nesantya. Ngophando olulolo hlobo, kunokwenzeka ukufumana utshintsho kwisakhiwo sezitho okanye iintsholongwane zangaphakathi ngexesha.
- I-placenta kunye nentambo yomlomo . Ngecebo elicwangcisiweyo, ugqirha uyayihlola ngokucacileyo i-placenta kunye nentambo yomlomo. Kwintambo eqhelekileyo yomthamo, kufuneka kube nemibhobho emibini kunye nesiswini esisodwa. Kodwa kwiimeko ezininzi zokukhulelwa kukhona i-artery 1 kunye neempahla ezi-2, ezinokuchaphazela kakubi inkqubo yokukhulelwa.
- Amanzi angamanzi . Iingcali ziqikelela inani le-amniotic fluid, ukungabikho kwezinto ezinokubangela ukuba i-gestosis, ukungondleki kunye neentlungu ekuphuculweni komntwana. Kwaye inani elininzi ngokwemanzi lingabangela ukugqithwa komntwana wesibindi, kubonga "inkululeko yesenzo" somntwana.
- Ikhonvix yesisu . Ngolu vavanyo ngeli xesha, unokuvavanya umngcipheko wokuphuphuma kwesisu okanye ukubonakala kwebasebenzi abangaphambi kwesikhathi.
Uphuhliso lwabazali ngeveki 22
Ngeveki 22, umntwana uhlala entloko, kodwa umboniso ojikelezayo we-fetus unokufunyanwa. Ungethuki kanye ngoku,
Ingane inokufakwa kwiimeko ezilandelayo:
- xa ibhinqa lifaka umntwana wesibini okanye wesithathu;
- nge polyhydramnios;
- nophuhliso olungavumelekanga kunye nesakhiwo sesisu, kunye ne-myomas ye-uterine;
- kwi "placenta" ephantsi okanye umboniso wayo;
- kunye neentlungu zomntwana.