Kuchokera koyamba kwa dzira la feteleza mu minofu ya uterine, chorion chimayamba kukula, chomwe ndi maziko a pulasitiki yamtsogolo. Kuti mudziwe malo ake, ultrasound ikuchitidwa, yomwe mayi woyembekezera nthawi zambiri amamva kuti chorioni chiri pambali pa khoma lakumaso, ngakhale kuti sichimvetsa chomwe chiri ndi tanthauzo lake. Tiyeni tione zochitikazi mwatsatanetsatane, ndikuuzeni momwe placenta imakhudzira khoma la chiberekero mwa njira imeneyi panthawi ya mimba.
Kodi zimakhala bwanji pa khoma la chiberekero cha placenta?
Choriyumu ikhoza kukhala pambali pa khoma lakumbuyo, kumbuyo, kumalo a uterine fundus kapena m'dera la mmero. Pa nthawi yomweyi, mantha a madokotala ndiwo njira yotsiriza.
Chinthuchi ndikuti malo a mwana wonyansa amalepheretsa njira yowonetsera yobereka. Ndikumvetsetsa kwa mimba zomwe zingabweretse mimba mwadzidzidzi ndipo zimayambitsa ntchito yodzidzimutsa.
Malo a chorion pafupi ndi khoma lachiberekero la chiberekero si kuphwanya. Ndipotu, palibe kusiyana kulikonse pakati pa kubereka ndi njira yoberekera, placenta imagwirizanitsidwa ndi khoma lachiberekero kapena lachiberekero la chiberekero. Chinthu chofunika kwambiri ndi chomwe chimatchedwa kutalika kwa kukonza placenta kuti usalowe mu uterine zoe. Kawirikawiri izi zimakhala zosachepera 6-7 cm.
Kodi nchiyani chomwe chimatsimikizira malo a chorion?
Mfundo yakuti chorion imapezeka kawirikawiri pamtunda wam'mbuyo kapena wam'mbuyo wa chiberekero makamaka chifukwa chakuti malowa a chiberekero sagwiritsidwa ntchito mobwerezabwereza komanso opatsirana. Kotero, mwachitsanzo, mmadera omwe khoma lawonongeka ndi myoma kapena kanyumba komweko, chigwirizano cha chorion sichingakhoze kuchitika kokha.
Zina mwa zovuta zowonjezera placenta ku khoma lakunja, ndiye kuti ndizovuta kuti mumvetsere zipsinjo za mtima za fetus kudzera mu khoma la m'mimba la mimba la mayi wapakati pogwiritsa ntchito mzamba wa stethoscope.