Kunyangwe mumagariro asina kukodzera uye inofungirwa kuti mumavhiki maviri kuberekwa kusati kwaitika (kuberekwa kwakakwana hakurevi sepamuviri), embryo mumasvondo maviri atotanga kurarama hupenyu hwayo uye kukura maererano neshoko racho. Mushure mezvose, kubvira maawa ekutanga ekutora pamuviri, fetus egg yakatanga kukura.
Pakarepo mushure mekunyudzwa kweii, iyo inowanikwa munharaunda yekutenderera, zygote -ija rinogadzirwa rinotanga kuparadzaniswa . Mushure mokuita nzira kuburikidza ne fallopian tube, pazuva rechina fetal yai inotanga kuva blastocyst. Muchiberekero chechibereko, blastocyst inosvika panzvimbo yekusimudza yezai - kuisa mukati mechibereko, izvi zvinotora mazuva anenge maviri. Amai panguva ino anogara mumuchembera wechibereko uye nekubatsirwa kwe chorionic villi zvakasimba kune chibereko chemukati.
Mucheche wemunhu mavhiki maviri
Mucheche womunhu, ane makore maviri, ari muBuaf bubble. Haana kuchinja zvakanyanya mushure mekubata pamuviri, akave atanga nhengo dzokuwedzera-midzi-amnion, chorion, yolk sac, iyo inopa mamiriro ezvinhu ose anodiwa kuti awedzere kufambira mberi. Pamasvondo maviri, fetus inoumba nuclei yesero uye cytoplasm. Pakupera kwemasvondo maviri, embryo inova mazai akakura, ane nucleus yakaumbwa ne cytoplasm, shina yakajeka, uye "yakashongedzwa" nekorona ye epithelial cells.
2 masvondo ekupedzisira - fetal size
Sezvo zvidzidzo zvichiratidza, ukuru hwembryo pavhiki 2 hachigoni kuenzaniswa, pamwe nekurema kwecheche muvhiki mbiri. Chiyero chekutanga, chinogona kutsanangurwa - 0.15 mm, chakanyorwa muvhiki rechitatu rekuzvitakura, uye kuyerwa - 1 g - chete pavhiki 8.
Kukura kwema fetus mumavhiki maviri
Kuti uchengetedze pamuviri, zvakakosha kutevera regimen yekudhakwa, hurumende yekudya, i.e. kupa mwana wemunguva yemberi nezvinhu zvose zvakakosha pakuvandudza kwakakodzera. Pasi pemamiriro asingagamuchirwe ekubudirira kwemucheche muzera remakore maviri haagoni kuiswa uye achauya pamwe nekuenda kumwedzi. Uye mukadzi haazombozivi kuti ane pamuviri. Mamiriro ezvinhu asina kunaka akadaro anogona kuva nekuzvidya mwoyo, kushanda muviri, mishonga.
Ko fetus rinotarisa sei semavhiki maviri?
Kuti uzive, zvakakwana kuita ultrasound iyo isingarati ichitaridzire kuti mazamu anotarisa sei, asiwo kunyatsotsanangura urefu hwehutano. Pasinei nokuti chokwadi chokuti embryo haisati yamboonekwa , panguva ye ultrasound zvinokwanisika kuziva nhamo ye mwoyo.
Iyo embryo yakatove yave ichiziva kwemazuva 14, nhengo dzaro dzinokosha dzinoumbwa, mwoyo wayo unogona kunzwika. Uyu haisi kungove mucheche. Uyu ndiye mwana wako weramangwana, uyo achazvarwa mumavhiki makumi matatu nemaviri.