Yize zonke izinhlobo zezakhiwo kuthiwa zivezwe ku-placenta futhi zikhona amasiko amaningi Ngokuzungezile, iqiniso ngukuthi sazi okuncane ngemisebenzi yalo yomzimba.
Lakhiwa nini futhi kanjani?
I-placenta yakha ngasikhathi sinye umbungu. Ezinsukwini zokuqala emva kokukhulelwa sithola iqanda, ohambweni lwalo oludabula ishubhu, elihlukana libe ngamaseli amancane.
Ngosuku lwesine, ngemuva kokukhulelwa, iqanda, eselivele lihlukaniswe ngamaseli angama-50 noma angama-60, lifinyelela ngaphakathi kwesibeletho. Kusukela kulo mzuzuLawa maseli azohleleka, amanye akha lokho okuzoba umbungu kanti amanye azoveza i-placenta.
Cishe ngosuku lwesithupha, le pre-embriyo “izofakelwa”, okusho ukuthi, izonamathela ngaphakathi kwesibeletho futhi izokwenza lokho endaweni lapho kubekwe khona amangqamuzana azokhipha i-placenta.
Kusukela ngosuku lwesithupha, kuqala ukwakheka kwe-placenta yesikhathi esizayo. Ngosuku lwe-12 sekuvele kukhona lokho okubizwa ngokuthi yi-utero-placental circulation. Ekupheleni kwesonto lesithathu igazi lombungu selivele ligeleza nge-placenta yokuqala.
Kubukeka kanjani?
Injenge-disc, i-15 kuye ku-20 cm ububanzi, i-2 kuye ku-3 cm ubukhulu, nezisindo (ekugcineni kokukhulelwa) i-500 kuye ku-600 g. Indawo ye-placenta enamathiselwe esibelethweni inokubukeka okungajwayelekile, ihlukaniswe yaba izingxenye, ezibizwa ngokuthi "ama-cotyledons" futhi umbala wayo ukhumbuza isibindi. Indawo yangaphakathi noma yesisu se-placenta ibushelelezi, intambo iyahlangana enkabeni futhi siyabona imithambo yegazi ephuma enkabeni iya endaweni ye-placenta lapho kushintshaniswa khona nonina.
I-placenta inobuso obubili
Uhlangothi lwabomama: Yindawo ye-placenta enamathiselwe odongeni lwesibeletho. Lapho inethiwekhi yemithambo yegazi izokwakhiwa, okuyiyona ezokwenza ukushintshaniswa kwezinto nomama, ngakolunye uhlangothi, ingane izothola izakhamzimba ezizidingayo ngakolunye uhlangothi, izosusa yonke imfucuza, okwamanje, engakwazi ukuziqeda yodwa.
Ngakolunye uhlangothi, kulobu buso be-placenta lapho kunezakhiwo ezithile ukuthi vumela ukulungiswa kombungu odongeni lwesibeletho.
Ubuso be-Fetal: Yindawo lapho intambo ye-umbilical ifakwe khona. Ibushelelezi futhi imbozwe yishidi lezinambuzane elibizwa nge-Amnion, lapho sithole khona i-amniotic fluid nengane.
Imiphi imisebenzi enayo?
Imisebenzi ye-placenta miningi kakhulu kunalokho esingakucabanga.
- Imfihlo yamahomoni. Ezinsukwini zokuqala zokukhulelwa, i-HCG hormone egcina i- "corpus luteum" esibelethweni iqala ukuphuma, okuyisibazi esishiywa iqanda lapho liphuma eshubeni futhi elibhekene kuze kube yisonto le-12 lokufihla iProgesterone ukugcina ukukhulelwa.
- Imfihlo progesterone kusuka ngesonto 12, i-hormone eyisisekelo yokuthi ukukhulelwa kusebenze kahle.
- Amanye ama-hormone aqinisekisa ukondleka kwengane nokukhula kwesibeletho, ngokwesibonelo.
- Inikeza ingane izakhamzimba ezibalulekile.
- Susa imfucuza enganeni, ngoba izitho zabo azikakulungeli ukuzenzela ngokwabo.
- Ukushintshaniswa kwegesi, okwenza umsebenzi wokuphefumula, ukuhlinzeka umntwana nge-oxygen nokuqeda i-CO2
- Umsebenzi we-immune: idlulisela kuma-antibodies engane avela kunina ukulwa nezifo ezithile.
- Umsebenzi wesithiyo, kuvimbela amagciwane amaningi nezinto eziyingozi ukuba zidlulele enganeni.
Ukulethwa
Yize leli gama livame ukusetshenziselwa ukubhekisela ekuzalweni komntwana, kuyiphutha. Ukulethwa yisigaba sokugcina sokubeletha, lapho kuhanjiswa khona i-placenta ngemuva kokubeletha kwengane.
Uma i-placenta ibekwe esibelethweni phambi kwengane, lokhu kubizwa kanjalo i-placenta previa, ukulethwa kwesitho sangasese sowesifazane akunakwenzeka.
I-placenta ihanjiswa kuphela lapho ingasadingekiYingakho kungowokugcina ukuphuma emzimbeni kamama.
Kwenzekani ku-placenta ngemuva kokubeletha, ngingayifuna?
I-placenta, lapho ukulethwa kwenzeka ku Isibhedlela noma umtholampilo kubhekwa njengodoti wezinto eziphilayo futhi iphathwa kanjalo, iqhubekela ekwelashweni nasekushisweni kwayo yizinkampani ezikhethekile. Uma ukuzalwa kwenzeka ekhaya kunjalo umndeni lowo onquma ukuthi uzokwenzani nge-placenta.
kuyinto isikhala esithile sezomthetho maqondana nokufuna ukufaka isicelo i-placenta ukuyisa ekhaya lethu futhi siyicubungule ngendlela esithanda ngayo. Uma uke wakucabangela, ngincoma lokho uthintana nabaphathi besibhedlela nesikhathi esanele sokuthi bakhombise izinqubo okufanele zilandelwe.
Umgogodla nentambo yiyona egcina ukuxhumana nomama futhi inikeze ingane zonke izakhi zomzimba, ngaphezu kwegazi ne-oxygen edinga ukuphefumula.