Vhiki makumi maviri ndiyo inokosha, nguva inokosha yekuzvitakura. Vhiki ino, vakadzi vakawanda vanotanga kunzwa sekutama kwemucheche. Yakapera hafu yekubata pamuviri: shure kwe toxicosis, danho rakaipisisa zvikuru rekukura kwe fetus, yekutanga yeUnited States. Pachine vhiki ye20, amai vangamangwana vanogona kugoverwa chechipiri yekuongorora kwepamuviri panguva yekuzvitakura . Kunyanya kukoshesa kunobhadharwa ne fetometry (basic parameters) ye fetus pamasvondo makumi maviri, sezvo ihwo hukuru hwemwana anobvumira munhu kuti asarudze kupesana mukugadzirwa kwayo.
Fetal parameters pavhiki 20
Kusiyana neyokutanga ultrasound pamasvondo 10-12, ultrasound ye fetus kwemavhiki makumi maviri inonyanya kudzidzisa: kwete kungowedzera mwoyo uye coccyx-parietal ukuru (KTP) yemwana zvakanyorwa, asiwo kuyerwa, biparietal musoro wekukura, musoro uye mimba dzenguva , kureba kwechifukidzo, pamwe nekureba kwehudyu, gumbo rezasi, forearm uye fudzi.
Sei tichida kuongorora kwakadaro? Kukura kwema fetus pamasvondo makumi maviri ekuberekwa kunobatsira chiremba-gynecologist kuti afunge nezvekukura kwekukura nekukura kwechecheche, kuti aone kuti zvinogona kuitika sei uye kutora matanho anodiwa munguva.
Zvisinei, kudarika kuduku mukukura uye kuyerwa kwema fetus mumavhiki makumi maviri haafaniri kuva chikonzero chekutya. Isu tose takasiyana: tete uye taidya zvakanaka, nemakumbo marefu kana mapfupi nemaoko, kumativi ose kana kutenderera musoro. Zvose zvakasiyana-siyana zvinowanikwa pahutachiona, saka hazvishamisi kuti michero inosiyana kubva kune imwe. Mukuwedzera, kubudirira kweprauterine kunowanzowanzosangana, uye muzviitiko zvakawanda vana vanowanzobata nemitemo. Ikoko kunogonawo kunge kune zvikanganiso mukugadzirisa nguva yekugumira kwekupedzisira kumwedzi.
Chimwe chinhu ndechokuti kutsauka kubva pachirevo chinopfuura mavhiki maviri. Semuenzaniso, fetus yemasvondo makumi maviri nemakumi maviri nematanhatu mumiganhu yepamusoro inopesana zvishoma kubva kumwana vhiki 17-18. Munyaya iyi, kunonoka pakukura kwe fetal kunogona kuitika zvechokwadi, izvo zvinoreva kuti kuongorora nekurapa kuchawedzerwa.
Fetometry ye fetus isvondo makumi maviri - inowanzo
Ndeapi mavhareji emagariro emucheche pavhiki 20? KTP (kana kutakura kukura) pamasvondo makumi maviri inowanzova 24-25 masentimita, uye kuyerwa - 283-285 g.BDP muvhiki makumi maviri inogona kuchinja mukati ma 43-53 mm. Musoro wechipfuva uchava 154-186 mm, uye mudumbu mutsva - 124-164 mm. Iyo yakareba yebhokisi inowanzove inenge ine 46-48 mm.
Marefu emakumbo emucheche anotsanangurwa nehukuru hwemapfupa eronda:
- femur - 29-37 mm;
- humerus - 26-34 mm;
- shandura mapfupa - 22-29 mm;
- mapfupa ejoka rezasi - 26-34 mm.
Vhiki ye20 yekuzvitakura - kukura kwe fetal
Pakawanda, nevhiki rechi20 nhengo dzese dzecheche dzakanyatsoumbwa, kukura kwavo uye kubudirira zvinopfuurira.
Pamasvondo makumi maviri, mwana anozozarura maziso ake, uye anogona kuratidza kubwinya. Panguva ino, chibereko chacho chinonyatsomwisa zvigunwe uye zvinonzwa zvakakwana. Kubvira vhiki ye20 yekuzvitakura, vanachiremba vanokurudzira kutanga kutaurirana nemwana. Mwana ari kushingaira, uye vamwe amai vari kutoziva nezvehutano hwezvoutano uye zvavanoda zvevana vavo nehutano hwekufambisa fetal pavhiki 20 .