Placenta - kuyinto eliyingqayizivele futhi kubaluleke kakhulu inkambo evamile yokukhulelwa umzimba okuvumela ukuthuthwa izakhi kanye amavithamini kusukela kumama kuya kid. Kuyinto kulomzimba kuncike kakhulu ukusebenza i-fetus. Ngakho-ke, placenta cishe akunakwenzeka overestimate.
Kuphephile ukusho ukuthi placenta iyingxenye esisisiza kulo lonke kwezinyanga eziyisishiyagalolunye evamile ukuthuthukiswa intrauterine umbungu. Ngokubukeka, placenta ufana nokubuya disc. Enye uhlangothi luvuliwe ezingenzeka embungwini, kanti eyesibili - ukuze esibelethweni sikamama ngokujovwa. Kusukela izithelo uhlangothi lo mgoqo eyinqaba eshiya umzanyana. Ubukhulu umzanyana ovuthiwe evamile - kusuka 15 kuya 25 cm ububanzi. umzimba ukushuba mayelana 2 cm.
Placenta elise ngqo esibelethweni, ngokuvamile le mucosa odongeni labaqaphi elingemuva. Kodwa ngenxa yezizathu ezihlukahlukene, kungashiwo ibekwe phambi, futhi ngezansi, ngezinye izikhathi ngisho ivimbela ophumayo nengane. Ingabe isikhundla lesifanele (ikakhulukazi uma placenta uphansi) kungaba nomthelela omubi kakhulu nokubeletha zemvelo. Yingakho odokotela linqume ezimweni ezinjalo, yokuqokwa Ukubeletha.
Kodwa uma senziwa kokutshelwa ngokukhubazeka kwengane ngesikhathi kuhlolwa semester kuqala, bese ungakhathazeki. Placenta - ngokushesha ukuthuthukisa umzimba. Sikhula nezinguquko phakathi naso sonke isikhathi sokukhulelwa, futhi kungenzeka, le uphethwe ngo semester lwesithathu futhi akekho uyakhumbula. Isakhiwo placenta kusukela Lobed. Ngamunye 'nocezu "ubizwa ngokuthi cotyledon. Zihlukaniswa nomunye ngodonga - septa. Ingxenye placenta zibheke umbungu amnion ngaphezu kwalokho camera. Futhi ngalesi ingxenye umzanyana Kumiswa. Lokhu kumiswa eluka uxhuma placenta ezingenzeka embungwini. Umzanyana emithathu isitsha ezinkulu igazi, futhi ikakhulukazi ukukhiqiza izinto umboza ngokuphelele izitsha, ebavikela umonakalo lokukhanda.
Kubalulekile futhi ukuthi placenta - kuyinto isitho Amatebhe. Sici Its main Yebo, ukuqinisekisa ukulethwa egcwele ingane izakhi kanye nomoya-mpilo. Kuyinto wokuqala nomkhulu kunabo bonke ukuqinisekisa ukuthuthukiswa evamile fetus. I-placenta futhi obangela ukukhiqizwa ezinye hormone athile. Ziyakwazi kuyadingeka ukuze balondoloze sokukhulelwa. Kuyinto human chorionic gonadotropin futhi progesterone. Omunye umsebenzi obalulekile - Ukuvikelwa. Placenta uhlobo isithiyo, it is eyenziwa ngokuqinile by abakhethayo Ukungena izinto. Kodwa ngenxa yezizathu eziningana, lo msebenzi wenziwa kahle, kanye nengane bangaba usathola ezihlukahlukene izinto eziyingozi ezingalimaza. Yingakho-ke kubalulekile ukuba umama okhulelwe kwaholela indlela yokuphila enempilo. I-placenta kusiza ingane ukuthenga zemvelo amasosha omzimba isegazini.
Funda mayelana nesimo se-placenta kusiza ultrasound. ukuhlela wayo wenziwa njalo senyanga. Lokhu kuhlola kwembula ngokwezinga umzanyana. Ubude grade ezaziwayo 4 (0,1,2,3), nobuntu isigaba esithile yokukhulelwa ngamunye. Uma umzimba ukuvuthwa ngokushesha kunokuba olunqunyiwe, bese ucoca ngaloko ukuguga placenta.