Ndokusaka vanaamai vese vari kumangwana vakamirira nguva iyo iwe unogona kunzwa kushaya mwoyo kwomwana wako nekubatsirwa kwemazuva ano mashandisi e-ultrasound. Kubva panguva ino hupenyu hutsva mudumbu remukadzi hunotanga kukura, uye mumwedzi mishomanana pasi pano pachava nemumwe munhuzve pasi.
Muchikamu chino, tichakutaurira kuti moyo unowedzera sei mumukiramu mushure mekuberekwa, uye kana uchitanga kurova panguva yechirwere chepamuviri.
Intrauterine kukura kwomwoyo wemwana
Ihwo hutumbi hwakatanga mumumuviri waamai, kutanga kune zvose, huri hupenyu, saka hunoda hurumende yakagadziriswa kuti ichengetedze basa rinokosha uye kubudirira kunoshanda. Ndicho chikonzero kuumbwa kwemhepo inonzi circulatory system ndiyo inotanga kuitika kwechikamu chiduku.
Imwe mushure mevhiki yechipiri mushure mekudyarwa, kana hukuru hwembryo hwakagadzirwa huri pasi pe1 mm, masero ayo anotanga kugovana mu "embryonic". Mumwe nomumwe wavo achazopiwawo mamwe mabasa uye, kunyanya, avhareji achabatanidzwa mukugadzirwa kwemhepo, masumbu, itsvo, mapfupa uye cartilage.
Inenge muvhiki rechitatu mushure mekuitika kwekukanganiswa kwehuta nehai, hollow vascular tube inoumbwa, iyo inopinza zvachose muviri mutsva we fetus. Iyi nhanho inokosha zvikuru mukuvandudzirwa kwevana remangwana, nokuti mushure mechinguva iyi tube inotendeuka mumoyo make.
Chigadzirwa chekutanga chechirongwa chikuru chinotevera chinoitika musi wegumi nemaviri mushure mekuberekwa kwemukomana, zvisinei, panguva ino yekusununguka haisati yatungamirirwa nehutachiona. Iko nguva ino mukurapa iyo inonzi inotanga nguva iyo mwoyo inorova pa embryo. Mushure meizvozvo, zuva rimwe nerimwe mwoyo mutsva ucharamba uchinyanya kuwedzera, uye nezuva rechigumi nemaviri mushure mokunge embryo yave yakagadzirwa, inotanga kuputira ropa pachayo uye inoita neimwe rhythm.
Munguva iyi yekukura, mwoyo wevana remangwana inomukati pamwe chete uye yakangofanana nechechi chikuru chevakuru. Panenge pavhiki yechinomwe yekudzivirira yemwana, septum inoumbwa mauri, uye chimiro chekugara chichawanikwa pashure pemasvondo gumi nemaviri ekuberekwa. Uyezve, muhutano hwose, mwoyo we fetus icharamba ichichinja zvikuru, ichikura pamwe chete nedzimwe nhengo dzezvikamu uye uchivapa oksijeni nezvimwe zvinovaka muviri.
Mwoyo unotora masvondo mangani kuti urove nemucheche?
Sezvakambotaurwa, moyo we fetal unotanga kurova apo kubuda kwekutanga kusingabatsiri kunoitika, kureva, zvichida pazuva rechi 22 mushure mekuberekwa. Panguva imwecheteyo, kuderedzwa uku kwakanyanya kusimba, uye hazvibviri kuzvibata kunyange nekubatsirwa kwemazuva ano mashizha. Mukuwedzera, panguva iyi yekukura kwemucheche, haaine mwoyo wakasimba.
Vanaamai vakawanda vanotarisira vanofarira kuziva kuti nguva yakareba sei iko kurova mwoyo, uye izvi zvinogona kugadziriswa. Muzviitiko zvizhinji, izvi zvinowanikwa pavhiki yechina yekusimbiswa kwechecheche mudumbu raamai, kureva, pamusoro pevhiki yechitanhatu yekubata pamuviri. Ndiyo panguva iyi apo vanachiremba vanokurudzira kutanga kwechirwere chechirwere kuti vaone kuti mwana ari mupenyu uye anovandudza kazhinji.
Mukuwedzera, pane dzimwe nguva, vakadzi vanofarira mune vhiki ipi yaunogona kunzwa kuti embryo inorova mwoyo, pasina kushandiswa kwemichina yakakosha. Kazhinji, mushure memavhiki masere makumi maviri nemaviri ekuberekwa, chiremba anogona nyore nyore kuona mwoyo muduku wakarohwa ne stethoscope kana Doppler detector. Kuita izvi, mumutemo, unogona uye mukadzi wacho pachake, asi nekuda kwekuvapo kweruzhinji rwakawanda runobatsira kunyatsoongorora zvakakwana kwete dzose.