Ukukhula kwemvakalelo yokuva kwimveku engekazalwa kuye kwaba yinto yokufunda kunye nokuphikisana iminyaka emininzi.
Okwangoku, ubungqina bubonakalisile ukuba umntwana osesibelekweni uyakwazi ukuva izandi kwitrimester yokugqibela yokukhulelwa.
Nangona kunjalo, kuyaziwa ukuba umbungu uphendula isandi kwiveki ye-16 nangona ulwakhiwo lweendlebe lungakhuli ngokupheleleyo. Abaphandi bathi usana emva koko lubona izandi ngokusebenzisa enye indlela. Le nkqubo inye endlebeni iya kuba lulusu. Oku kuya kusebenza njengelungu elikhulu lokufumana ulwazi lokungcangcazela, ukuluhambisa nge-amniotic fluid apho kungena khona umntwana.
Amalungu okwakhiwa kwendlebe yangaphandle nendlebe ephakathi aphuhla kwiiveki zokuqala ezingama-20.
Ewe ukusukela kwiveki yama-25 yokumitha xa ilungu lokuva sele lisebenza. Ngokwe-American Academy of Pediatrics, ukusukela ngoku, umntwana ongekazalwa uyakwazi ukubona, ngokusebenzisa ulwelo lwe-amniotic olungqongileyo, izandi ngaphakathi komzimba kamama: ukubetha kwentliziyo, ukujikeleza kwegazi, ukuphefumla, nomsebenzi wenkqubo yokwetyisa. .. Umbungu nawo uyaliqonda ilizwi likamama Idluliselwa ngomqolo kwaye ifikelela kwi-sacrum.
Kuye kwafakazelwa ukuba ilizwi likamama linesiphumo esithuthuzelayo kwimveku engekazalwa, kodwa kungengenxa yentsingiselo yamagama, kuba umntwana ongekazwisisi intsingiselo yentetho yomlomo, kodwa ngenxa yokuchaphazeleka kwamagama.
Kuyaziwa ukuba iyakwazi ukubona izandi zangaphandle nangona idityaniswe lulwelo lwe-amniotic. Kuba ilungu lokuva libuthathaka kakhulu, kuyacetyiswa ukuba abafazi abakhulelweyo abazichazi kwizandi ezivakalayo njengokukhwaza kakhulu, ukubetha, umculo omkhulu kakhulu ... ukunqanda umonakalo.
Emva kokuzalwa, umntwana usuka emanzini amamele ukumamela emoyeni. Umsele wendlebe ukhuselwe ziintsalela ze-amniotic fluid kunye nethishu ye-gelatinous eya kuthi iphinde ibuyiselwe ekuhambeni kwexesha.