I-fetus isakhiwe ngokuphelele ngeviki lama-30 lokukhulelwa, izinhlelo zayo zemisipha nezomchamo sezivele zisebenza. Ukuhamba ngezingalo nemilenze kubonisa uhlelo olusungulwe nge-musculoskeletal system, futhi ukuphendula kwezimoto ekuphenduleni umsindo ozwakalayo nokukhanya kubonisa ukuthuthukiswa kwezitho zomqondo. Esihlokweni sethu, sizocubungula izici zokuthuthukiswa kwesisu kumasonto angu-30 wokukhulelwa kanye nobukhulu bawo obukhulu.
Usayizi we-fetal emavikini angu-30 wokubeletha
I-Fetomethri ye-fetus yamaviki angu-30 okukhulelwa yenziwa ngesikhathi se-ultrasound. I-ultrasound ye-fetus yenziwa emavikini angu-30 uma kunezibonakaliso (ukuhlola i-ultrasound kwenziwa emavikini angu 32-34). Emasontweni angama-30 ekubelethweni, ubukhulu be-fetal buyi-38 cm. Futhi isisindo se-fetus emavikini angu-30 cishe cishe angu-1400 amagremu. I-Kokchikotemennoy ubukhulu bomntwana emavikini angu-30 wokubeletha ngu-27 cm.
Iyini ingane emasontweni angama-30 okukhulelwa?
Emasontweni angama-30 okukhulelwa ingane isivele ifana nendoda encane, inokulingana okufana nezingane ezisanda kuzalwa. Kulesi sigama sokubeletha ingane ikhula ngamandla futhi izuze isisindo. Ngalesi sikhathi ingane ikwazi kakade okuningi. Isibonelo, ingane ingakwazi ukukhanyisa ekukhanyeni okukhanyayo, iyasebenza ngokwengeziwe kumsakazo ozwakalayo. Ukungena kwe-amniotic fluid kungenziwa kuhambisane nesikhwama, esithweswa yilo wesifazane njengesigqi, hhayi ukushaqeka okukhulu. I-kid kule minyaka yenza ukunyakaza okuphefumulayo kuze kufike ku-40 ngomzuzu, okubangela ekuthuthukiseni imisipha ye-intercostal nokuvuthwa kwezicubu zamaphaphu. Kule minyaka yobudala, ingane isenesikhumba esinyene, inwele ekhanda kanye nekhanda lezinwele emzimbeni (iwegogo), okwandisa kancane kancane uketshezi lwe-fat subcutaneous.
Imizwa yowesifazane emavikini angama-30 ukubeletha
Iviki lama-30 lokukhulelwa yimizuzu yokuhamba komama ozayo ngesikhathi sokubeletha. Ubukhulu besisu ngesonto lama-30 lokukhulelwa lukhuphuka kakhulu, isikhungo sokuvuthwa kwemvelo kancane kancane siya phambili futhi owesifazane udinga ukulandela ukuma. Owesifazane ngezinye izikhathi uzizwa ukuthi ingane ishukumisa, ithoni ye-uterine ingakhula ngenxa yokwelula ngokushesha kwezindonga zayo. Ngalesi sikhathi, owesifazane angase akhathazeke ngokuvuthwa okuvamile (isibeletho esikhulisiwe sigcizelela isisindo), ukukhukhuma ngokweqile (ukulinganisela kwezinga lokunciphisa umzimba).
Ngakho-ke, sibona ukuthi imingcele ye-fetus evikini lama-30 yokukhulelwa ingathathwa yi-ultrasound. I-fetus encane evikini lama-30 ibonisa ukubambezeleka ekuthuthukiseni kwe-intrauterine, futhi ingatholakala ukuthi ayinakho ukutholakala kwe-fetoplacental ( fetal hypoxia ) noma ukutheleleka kwe-intrauterine.