Ubukhulu kunye nesantya sokukhula kwepentecenta zizo zibonakaliso zibini ezibalulekileyo ngexesha lokukhulelwa, ezinokumiselwa kuphela ukusebenzisa i-ultrasound. Kukho imimiselo ethile yokukhula kunye nobukhulu be-placenta. Ukuphambuka kwabo kusongela iingxaki ezininzi ezingathandekiyo, nokuba zibuhlungu kakhulu.
Ukwanda kwenani le-placenta kubonisa ubukho bentsholongwane. Ngamanye amaxesha kwenzeka ngexesha lokudluliswa ngexesha lokukhulelwa kwesifo esiyingozi, kunye nesifo se-anemia, isifo sikashukela, i- gestosis kunye ne-Rhesus. Ngoko ke, abafazi abanezi zifo bajongwa ngokucophelela xa bekhulelwe.
Kuxhomekeke kwixesha, ubukhulu bepentecenta bunamanani ahlukeneyo oqhelekileyo. Ngendlela, ukuphambuka kuwo ukuya kwicala elincinci kukwaqwalaselwa njengentsholongwane. Ukuba ubukhulu be-placenta buyancitshiswa, le meko ibizwa ngokuba yi-hypoplasia. Le nto ibangelwa zizizathu ezifanayo njengokuba ukukhula kokuqala kwe-placenta - ukutshaya nokusela abhinqa abakhulelweyo, iinkqubo ezithintekayo nokunye okunjalo.
Yintoni ekufuneka ibe yongqinamba yepentecenta?
Kwiiveki ezingama-21, ubukhulu be-placenta bufikelela kwizinga le-17.4 mm. Kwiveki nganye, eli nani landa nge-1 mm. Ubukhulu bepentecenta kwiiveki ezingama-36 zi-35.5 mm, kwiiveki ezingama-37-34.4 mm. Oko kukuthi, ubuninzi bexabiso lobukhulu buwela ngqo kwiiveki ezingama-36. Emva koko, i-placenta iya kuba yincinci. Ekupheleni kokukhulelwa, ubukhulu be-placenta akufanele kube ngaphezu kwama-34 mm.
Ewe, zonke ezi manani zingahluka kwizinga elithile. Kodwa ukuphambuka okuphawulekayo kwimiqathango kufuneka kuqaphele oogqirha. Kule meko, i-ultrasound ingcali, i-doplerography kunye ne-cardiotocography yenziwa.
Ukukhula kweplacenta
Esi sibonakaliso sibonisa ukuba ilungu elibalulekileyo kangako ipentecenta yenza imisebenzi yayo. Isidanga se zero sigcinwa de kube kwiiveki ezingama-27, kufutshane ne-32 iqondo lokukhula liba sesibini, kunye neveki ezingama-37-yesithathu.
Isiqendu sesine sokukhula kwe-placenta siyabonakala kwiimeko zokukhulelwa. Ngoko ke, akubona bonke abakwi-ultrasound baxilonga eli nqanaba lokukhula.
Ukuguga kwangaphambili kweplacenta kukhokelela kwiimeko ezahlukahlukeneyo ezimbi, kwaye umphumo wale meko yintlungu engumntwana. I-placenta ayizalisekanga kakuhle imisebenzi yayo, umntwana ufumana i-oksijini encinci kunye nezondlo, ukuphuhlisa kwayo kuphuculwa. Oku kunokukhokelela ekufeni komntwana kunye nokuzalwa komntwana omncinci nobuthathaka.
Le meko inokulungiswa ngamachiza - zama ukuphucula utshintsho lwezondlo kunye ne-oksijini.