Umntwana wesisu

Njengoko kuyaziwa, ngexesha lokuphuhliswa kwe-intrauterine yengane ezayo ejikelezwe ngamabhanzana omntwana. Ezi ziquka i-amnion, i-chorion ephathekayo kunye nenxalenye ye-decidua (endometrium, eyenziwa utshintsho ngexesha lokukhulelwa). Zonke ezi iigobolondo, kunye ne-placenta zenza i-fetal bladder.

Uninzi lwamama kamva bacinga ukuba i-placenta kunye ne-bladder enye enye. Enyanisweni, oku akunjalo. I-placenta isakhelo esizimeleyo esinika izondlo kunye ne-oxygen kumntwana. Kungenxa yakhe ukuba umntwana udibene nomzimba womama.

Yintoni i-fetal bladder?

Ukuphuhliswa kwezi membrane ze-fetal kuqala ngokukhawuleza emva kokuphunyezwa kwenkqubo . Ngaloo ndlela, i-amnion yile membrane enomzimba omncinci, oqulethe ngokubalulekileyo kwimizimba engxowankulu kunye ne-epithelial.

I-chorion epholileyo ifumaneka ngqo phakathi kwe-amnion kunye ne-decidua. Iqukethe inani elikhulu lemithambo yegazi.

I-membrane yesigxina iphakathi kweqanda le-fetal ne-myometrium.

Iiparitha eziphambili zebladder fetal bubuninzi bayo kunye nobukhulu, obuhluka kwiiveki zokukhulelwa. Ngoko, ngosuku lwama-30, ububanzi be-fetal bladder bu-1 mm kwaye banda ngo-1 mm ngosuku.

Yiyiphi imisebenzi yebladder fetal?

Xa uthetha malunga nokuba isantya sesisu sibheke njani, siya kuqonda ukuba yintoni eyona misebenzi ephambili. Ingundoqo yazo yile:

• ukuhlanganiswa kwezixhobo ezahlukahlukeneyo ezinika iimpendulo zomzimba;
• ukutshintshiselwa kwegesi ehamba phambili (ukugcinwa kwe-amniotic fluid composition);
• ukufihla nokucocwa kwe-amniotic fluid;
• ukugqithiselwa kwemveliso yeemveliso;
• ukukhutshwa kwezinto ezinomdaka ezenza ukuba kugcinwe ukukhulelwa;
• Umsebenzi wokukhusela (uqaphele umntwana osusweni kunye nokulimala).