Kubata kwomwana kune sei

Kuti kubata kwomwana kunoitika sei hakuzivikanwi kune munhu wese. Kunyange zvazvo nyaya dzakawanda, zvidzidzo kuchikoro, mumatunhu akakwirira, kunyanya nezvechiremba, zvakatsaurirwa panyaya iyi. Saka mwana anozvara sei? Ngationgororei zvakanyanyisa munyaya yacho.

Kuberekwa kwehupenyu inzira inoshamisa. Inotanga nekumwa kweii mai neukama hwababa. Panguva yekuita zvepabonde, mamiriyoni e spermatozoa anotamira kune ovum. Zvisinei, chimwe chete chavo chinopikisa. Kuburikidza nehombe yeii yakakura, spermatozoon inopinda panzvimbo pfupi. Mushure meizvozvo, imwe sermermatozoon haigone kuita chinhu chimwe chete nenzira ipi zvayo. Muchiitiko ichi, chete musoro unopinda mukati mazai, muswe unogara kunze. Ichi chikamu chakazoparadzwa zvakare.

Panguva iyo musoro wevarume wemurume wakapinda mu ovum, ma chromosomes ayo uye mazai pachawo akabatanidzwa mune rimwe. Ndicho chikonzero nhamba yekromosomes muchechi itsva ichangobva kuumbwa inova yakaenzana nemakumi mana nematanhatu. Somugumisiro weshoko iri, chinonzi-zygote chinoumbwa, chichienda mukati mehutachi uterine kwemazuva maviri kusvika matatu. Kwemazuva akawanda zygote yakakamurwa, blastula inoumbwa.

Sero idzva rine zvikamu zvakasiyana. Iyo yepamusoro yakatumidzwa inonzi trophoblast. Iyo inotumira mapurojekiti chaiwo enzymes. Vanokwanisa kuputsa huriri hwakananga mudumbu. Pakupedzisira, imwe yakadzika inoumbwa. Munharaunda iyi mugumisiro uchanamatira mazai e fetal. Iyi nzira inonzi kushandiswa nevanyanzvi. Shoko rinowanzozivikanwa kuvanhu vazhinji, zvinoreva zvinyatsosiyana mumamiriro ezvinhu akasiyana. Kana kuverengwa nemazuva, zvino munyaya iyi kusimwa kunowanikwa kazhinji pazuva rechinomwe mushure mekudyarwa kweoocyte. Kana kusvika panguva ino zamai yakave yakaratidzwa kune chero ipi zvayo inokuvadza, inofa kana inokuvara kune dzimwe nzvimbo. Zvisinei, shure kweizvi, kudzorerwa kwayo kwakakwana kunogoneka.

Gare gare, chidimbu che fetus chinobva kune trophoblast. Kune dzakawanda dzazvo, chimwe chezvikanda izvi chinonzi chorion. Chorion ine villi, iyo inozobva yaumba iyo placenta. Dzidzo yake inotanga pavhiki yechisere yekuzvitakura. Kana iri yakazara maumbirwo, nguva ino inowanikwa pavhiki yegumi nemana. Placenta inokosha zvikuru mukufambisa komwana. Uyu ndiwo mutezo unoshanda musati waberekwa nekuberekwa kwechecheche. Muzhinji, kutaridzika kwepalacenta iyi kwakafanana zvikuru nekeki inowanikwa. Kureba kwaro kune masendimita makumi maviri kusvika makumi maviri nemashanu, nehupamhi hwayo imwe chete nehafu kusvika maviri masentimita.

Kubvira pamakanda kusvika kumucheche anowedzera, kune mimwe midziyo. Ivo vakakomberedzwa nezvinhu zvakakosha. Uyu ndiwo mutsara wembilical. Ndiyo placenta iyo inomira inoita mabasa mazhinji muhupenyu hwemucheche. Aya mapapu, chiropa, uye itsvo dzemuviri unokura. Mukuwedzera, kuburikidza nayo iyo michero inokodzera fetus, zvigadzirwa zve fetal metabolism zvinosunungurwa, kukosha kwegasi kunoshandiswa kunoitwa. Iyo placenta inopa hutachiona hwehutachiona hwepamusoro.

Kuti kubata kwomwana kunoitika kunotsanangurwa pamusoro apa. Zvinofanira kuonekwa kuti kusvika panguva ino, munhu wese anogona kuwana kana kudzidza zvakawanda zvakawanda nezvekuita izvi. Iko kune mabhuku anokosha anotsanangura kuti kutora kwomwana kunowanikwa sei. Zvinofanira kuonekwa kuti mukadzi wese wechiduku uyo akazvipira munyaya ino inofadza uye nyaya "Kusagadzikana kwezvinodhaka pamubhedha wemwana". Amai vemazuva ano vanofanira kuve neruzivo rwekuti zvose zvinoitika sei. Kuonga ruzivo urwu, anokwanisa kudzivisa matambudziko mazhinji uye matambudziko, kuchengeta mimba yake uye kubereka mwana ane utano. Nguva yekuberekwa kwemwana haina basa.