Kodayake a makonni 31 ne tayin din bai kasance ba, amma ya fi dacewa don haihuwa. Idan ciki ya zama na al'ada, nauyin tayin, lokacin da ya fara makonni 31 - 1500 grams ko fiye, tsawo - kimanin 40 cm.
Makonni 31 na hawan ciki - ci gaban tayi
A wannan lokaci, pancreas fara aiki a tayin, samar da insulin. A cikin huhu, mai ciwon tsufa yana ci gaba da samarwa, amma bai isa ba don aiki na yau da kullum. Amma wasu alamun farfadowa sun ci gaba. A cikin 'yan mata, manyan labia labia ba su rufe kananan yara, baran suka shiga cikin kullun ba. Fatar jiki an rufe shi da asalin asalin, sashin jikin mai ƙananan abu ne ƙananan, kusoshi bai riga ya rufe gado ba.
Fetal ultrasound a makonni 31 na gestation
Anyi amfani da duban dan tayi na uku a makonni 31 - 32 na gestation. A wannan lokaci, tayin yana yawanci a cikin kai . Idan gabatarwa shi ne kullun, to, an tsara wani tsari na musamman don nuna juyayi tayi. Tunda a cikin gabatarwar breech, haihuwar ta fi wuya, kuma nan da nan tayi zai zama babba don juya gaba daya.
Babban girman tayin a makonni 31:
- BDP (girman kwanyar kwanyar) - 78.4 mm;
- LTE (girman adadin kwanyar kwanyar) - 58.8 mm;
- DB (cinya tsayin) - 100 mm;
- SDHK (ƙananan diamita na kirji) - 73.5 mm;
- SJ (yana nufin ƙananan ciki) - 81.0 mm;
- kauri daga cikin rami 33.4 mm, yayin da yake daidai, ba tare da haɗuwa ba;
- tsawo na shafi na amniotic ruwa a cikin wani wuri free daga sassa na 'ya'yan itace - 35 - 70 mm.
Dukkan ɗakuna huɗu na zuciya, manyan tasoshin ruwa da kwastuna suna da bayyane daga zuciya. Zuciyar zuciya daga 120 zuwa 160 a minti daya, fasalin yana daidai. Tsarin kwakwalwa daidai ne, ƙananan ventricles na kwakwalwa ba kwakwalwa ba fiye da 10 mm. Duk gabobin ciki na tayin ne bayyane.
A wannan lokacin, an kuma ƙaddara idan akwai ƙuƙwalwar wuyan wuyan wuyansa tare da igiyar waya da sau nawa. Harkokin Fetal suna aiki, amma mahaifi kanta tana iya ƙayyade wannan - a cikin makonni 31 da tayin ke motsawa sosai da rawar jiki yana da karfi sosai domin mahaifiya dole ne a yi akalla 10 zuwa 15 ƙungiyoyi a kowace awa.