Ukuphila komuntu omncane ngaphambi kokubeletha ngaphakathi kumama kunikeziwe, ngaphezu kwakho konke, imithwalo yegazi eminingi, intambo ye-umbilical, i-placenta. Uthola izakhi eziningi ne-oxygen egazini likaMama. Ukushintshaniswa kwezinto phakathi komama nomntwana kunikeza izitho ezimbili nje ezibalulekile ze-fetus - i-placenta ne- chorion .
I-chorion, ebonakala ekuqaleni kokukhulelwa, iqala ne-fetus, iba yindlala. Ekupheleni kwe-trimester yokuqala, iguqulwa ibe yi-placenta, lapho ingane ihlanganiswe nodonga lwesibeletho. Ukunakekelwa okuningi kunakhokhwa endaweni yendawo yokudlela.
Iyini indawo eyakhelwe kuyo yonke indawo ye-chorion?
Inkuthalo ye-chorion ingaba phambili, emuva phezulu, noma enye yezindonga eziseceleni. Ukuhlelwa kwendawo ye-chorion odongeni olungaphezulu (ngaphansi kwesibeletho) kubhekwa njengokujwayelekile.
Uma ingane ihlanganiswe nodonga oluphansi lwesibindi, khona-ke bathi i-chorion iphansi eduze nodonga olungaphambili (2-3 cm kusuka esibelethweni kuya esibelethweni). Leli lungiselelo le-chorion elisendongeni yangaphambili litholakala ezingaphezu kuka-6% wabesifazane abakhulelwe. Indawo eveziwe yokulungiswa kwe-chorion akuyona yokugcina, i-tk. Ezimweni eziningi, i-chorion ihamba ukusuka endaweni ephansi ibe sesikhundleni esiphakeme, esiza ukugwema izinkinga ezihambisana nokwakhiwa kwe-chorion esifundeni se-pharynx yangaphakathi.
Yiziphi izingozi ezihlobene nokuthunyelwa okuphansi kwe-placenta noma i-chorion?
Lokhu kunciphisa ingozi yokukhulelwa kwesisu, futhi kungabangela ukugaya okukhulu, kokubili ngesikhathi sokukhulelwa nangesikhathi sokubeletha. Kubuye kube yisibonakaliso sesigaba sokudla kanye nokukhishwa okuphelele kwesibeletho ngemuva kokubeletha. Ukubeletha okuvamile kungenzeka kuphela uma i-placenta ingekho eduze kwe-2 cm ukuya ekuphumeni.
Ukufingqa isihloko sethu, sizoveza ukuthi owesifazane akufanele akwesabeke ngokuzikhethela kokwakheka kwendawo yokudlala, into eyinhloko ukulalela ngesikhathi sokuthi kube khona isethulo esiphansi emigomo yokugcina futhi uhambisane nemithi kadokotela.