I-placenta chinhu chakakosha zvikuru pamucheche, nekuti inoita mabasa ose anodiwa muupenyu. Kukura kweparcenta hakugoni kutsanangurwa pasina ultrasound.
Nekuzvitakura kwakakura, placenta inovaka upamhi hwayo uye inowedzera nhamba yemidziyo mairi. Pane imwe nguva, muviri unorega kukura uye unotanga kukwegura. Kune zvikamu zvakasiyana zvekukura kwe "nzvimbo yemwana," chimwe nechimwe chaicho chinowanikwa kune imwe nguva yekurera mwana.
Zvikamu zvekutsvaga kwemalacenta nevhiki
Izwi rokuti "kukura kwelacenta" rinoreva kuoneka kuchinja kunowanikwa mauri, zvichienderana nemamiriro edzidziso yekubata pamuviri. Saka, pane imwe tsika inosvika pakukura kwepentecenta, iyo inoratidzira nguva yekuzvitakura. Uye iyo yakakwirira ichi chiyero ndechokuti, mashoma mabasa ayo placenta anogona kuita. Kune madhigirii mana ekukura kwakanyanya, rimwe nerimwe rinofanira kuitika pane imwe nguva. Kana iyo placenta inopera mberi kwenguva, izvi zvinogona kuguma:
- hypoxia we fetus;
- kunonoka kukura kwe fetus;
- hypotrophy ;
- kuderera kuberekwa.
Nhamba yekukura kwepascenta 0 inonzi yakasununguka kusvikira vhiki ye makumi matatu yekuzvitakura. Chiratidzo chakadaro chinoreva kuti mutumbi uchiri muduku kuti uve nechokwadi chekuti fetal inoda zvizere.
Icho chikamu chechipiri chekukura kwechimiro chimiro chezera remakore ekupedzisira, kubvira pamasvondo makumi matatu kusvika ku39. Iyi nguva inofungidzirwa kuti ndiyo yakagadzikana, uye kunyange kana pamasvondo 37 iwe wakaziva kukura kwepentecenta yezinga rechitatu, saka hapana chikonzero chekufunganya. Asi munyaya yekufambidzana nemakwenzi ekurapa, hypoxia ndiyo yakanakisisa inogadzirwa neCCTG kuti ione zvirwere uye kuti iite chikamu chekudzivirira.