Ingxenyana ye-placental yindawo "yengane" yesikhashana, ekhona emzimbeni wesifazane kuphela ngesikhathi sokubeletha. Inhloso yokubukeka kwakhe ukuhlinzeka ingane yakho konke okudingekayo ekuphileni nasekuthuthukisweni. Uma kwenzeka ukwephulwa emzimbeni, kuvele ukungaqiniseki kwamapulangwe okungapheli, okungaholela emiphumeleni enzima.
Izimbangela zokungaqiniseki okungapheli kwe-uteroplacental
Lesi sifo sibonakala njengomphumela wesenzo emzimbeni kamama wezici eziningi ezingalungile, isibonelo:
- ukutheleleka nokuvuvukala;
- indlela yokuphila engcolile;
- ukungondleki ngesikhathi nangaphambi kokukhulelwa ;
- ukuhlukunyezwa ezindongeni zesisu;
- ukusetshenziswa kwezidakamizwa eziphikisana nokukhulelwa nokunye.
Iyini ingozi yokuntuleka kwe-placental?
Ukuba khona kwalokhu kutholakala kuyisignali ye-alamu, okufanekisela ukuthi ingane iqala ukulala ngemva kokuthuthukiswa, kunamaphutha ekubunjweni kwezitho zangaphakathi, izinhlelo, njalo njalo. Izingane ezizalwa ngemva kokugqoka kanjalo, zibhekene nezinkinga zesimiso sezinzwa, azikwazi ukuzivikela.
Ukwehluleka okungapheli kwe-placenta kungaholela ekufeni kokubeletha esibelethweni noma ukukhubazeka okukhulu okuthuthukayo. Ihlukaniswe ngezigaba ezimbili zokuqhubeka:
- Ukuntuleka kwengqondo okungapheliyo okungekho emthethweni kubonakala ukwehla emisebenzini yendawo "yengane" kangangokuthi ingane ingakwazi ukuthola izinto ezidingekayo.
- Ukuntuleka kwe-placental ngokweqile kusho ukusweleka okukhulu kwe-oksijeni nokudla, okuvezwa yi-fetus.
Njengomthetho, ukuphelelwa amandla okungenasiphelo kwemali kusho ukulawulwa okuzimele kwenkinga ngumzimba wesifazane futhi akudingi ukwelashwa. Ngokuvame ukwenziwa komkhuba wokuvimbela izifo kukhona ukungaqiniseki okungokwemvelo okungenasifo esiphuthumayo, okungaba umphumela wesigaba sokuqala sokugula, noma umphumela wethonya lazo zonke izinto ezifanayo ezimbi. Ngokuvamile kwenzeka emva kweviki le-18 lokubeletha.
Ngokwezinkinga zokubeletha, kukhona ukuhlukaniswa okuthile kweziphambeko ekusebenzeni kokugeleza kwegazi ohlelweni lwesimiso se-"mother-placenta-fetus", ngenxa yokuthi kungenzeka ukuhlukanisa izinga lobunzima balezi zifo:
- Ukuntuleka kwe-intercental 1a kubonakala ngokuphazamiseka ekusetshenzisweni kwemvelo ohlelweni lwe-mother-placenta, lapho ubuhlobo obunamapulanka abuzwa khona.
- Ukungaqiniseki kwamapayipi degree 1b. Lapha konke okuphambene nalokho, okungukuthi: uhlelo lokujikeleza kwegazi lwe "fetus-placenta" luvame ukungasebenzi kahle, futhi ukugeleza kwegazi kwe-uteroplacental akuphuli nhlobo.