Ngethuba lexesha lokukhulelwa lonke, i-fetus isendaweni yasemanzini - ibhanti egcwele amniotic fluid, ibizwa ngokuba yi- amniotic fluid . Kuze kufike ixesha lokuzalwa, lo buble wenza imisebenzi emininzi - ityhila izityezelo, ithatha inxaxheba kwiinkqubo ze-fetal metabolic, ilungiselela ukulungelelaniswa kwezinto eziqhelekileyo zesebe. Xa ixesha lokubeletha liza, i-bladder iphuka-kwaye yonke i-amniotic fluid iyaphuma-le nkqubo ibizwa ngokuba "ukuhamba kwamanzi".
Ngombolo ye-amniotic fluid kunye nesiqhelo
Nge-ultrasound ecwangcisiweyo, ugqirha uyavavanya ixabiso le-amniotic fluid, alithelekise ngesantya sokukhulelwa okuzekileyo kwaye alonge utshintsho olunokwenzeka ekubunjweni kwawo. Isiqhelo kunye nesantya se-amniotic fluid zibalwe kwixesha lokuthoma ngalinye kwaye ziboniswe kwitheyibhile elingezantsi:
Idatha enikezelwe kwitheyibhile iyalinganiselwa, kuba ugqirha ngokukhawuleza uvavanya lo mqondiso ngethuba le-ultrasound, ecinga imeko jikelele yowesifazane okhulelweyo kunye nezibonakaliso zempilo zakhe kunye nosana esibelethweni. Inani le-amniotic fluid lihluka ngokubanzi kwaye okuqhelekileyo kule meko lixesha elifanelekileyo. Itheyibhile inika nje ingcamango yemigangatho yendalo ye-amniotic fluid, ngoko ukuxilongwa kokugqibela kwenziwa kuphela ngugqirha osekelwe kwi-ultrasound.
Isiqhelo se-amniotic fluid ngenye yezona zinto zibaluleke kakhulu kwizibilini, ekubeni le ncwadana iyimakishi enokwethenjelwa ye-pathology of pregnancy. Xa ukusebenza kwezitho zesikhashana ze-fetus kuphazamiseka, i-polyhydramnios zidlalwa rhoqo, kunye ne-pathology kwinxalenye yomzimba kamama-kaninzi kukho ukungondleki. UMogovody kwabasetyhini abakhulelweyo baqwalasela isalathisi se-amniotic fluid, engaphezulu kwesiqhelo (kulo mzekelo - umda ophezulu woluhlu) ngamaxesha a-1.3-1.5. Ukungondleki (i-quarter engaphantsi komda osezantsi kumgangatho oqhelekileyo) uqulethwe ngokubeletha okunzima kunye nokukhathazeka kokuzalwa komntwana. I-Polyhydramnios inobungozi njengengozi yokuphulukana kwesisu kunye ne-pelvic presentation of the fetus.