Ichi inotyisa "mu utero"

imba yokutanga zvose munhu - mudumbu ramai - dzinenge nguva dzose nomutsa uye dzakanaka. Zvisinei, vhiki 38 (anenge 266 mazuva), pakati pamuviri uye kuberekwa tiri chikuru upenyu, kunyanya mune yokutanga 8 vhiki kupfuura chero panguva kwoupenyu hwavo kusvikira rechipfumbamwe gumi. Asi pasinei zvingakanganisa, vakawanda vevana vari ino gwindiri uye nenguva nenzira.

Setsika, vanachiremba zviparadzanise intrauterine kukura akatevedzana matatu matanho - trimester:

• 1st rinovapo kusvika vhiki 12;
• Rechipiri - kubva 12 kusvika 28 vhiki;
• Third - kubva vhiki 28 uye kusvikira pakuzvarwa kwemwana.

Vanodzidza nezvezvinhu zvipenyu uye embryologists, uyewo, vanosarudza kuti zviparadzanise utero 3 dzisakarurama nguva: embryo, embryo uye fetus.

Tose Kutanga ive nyaya zvisina upenyu, ane chimiro masero maviri akabatanidzwa ane 46 okutodza, izvo, akavapindurawo, muri unimaginably mashoko akawandisa nezveupenyu itsva ichi pamuviri. Sezvineiwo, muna China zviri kuonekwa rokuberekwa zuva pamuviri, kwete kuberekwa mwana. tsika iyi, zvinokosha kuziva kuti anyatsoona chaizvo nhamba pamuviri.

Pre-Natal kuvandudzika rwemucheche vhiki :

0-2 mavhiki. The weboka zai wokutanga rinotanga pashure maawa 24-36 mushure muchangosangana. Mumwedzi wokutanga maawa 40 pashure masero yokutanga vachiri kugova zvose zvakafanana. 3-4 zygote daily inoumbwa 12-16 masero uye anonzi Mórula, saizi raro anenge akaenzana navane pinhead. Pashure 4 Mazuva Vakagovana masero dzinotanga kusiyanisa uye kuparadzana maviri utachiona akaturikidzana: dzokunze siyana rwokudzivirira goko kumativi embryo - ramangwana placenta uye kubva mukati achaita zvinoumba embryo yakafanira. Pakuzadzisa rikaitika fallopian chubhu, nokudaro wezvamatongerwe blastocisto. ipapo iye anosvika dumbu achipinda ayo mhango uye anobatanidza kuti uterine kumadziro kuti endometrium - izvi zvinonzi muchibereko. It kunoitika mukati memazuva 10-14 mushure pamuviri. Panguva iyi rinopera embryo uye fetus pamuviri kukura kunotanga. About 60% of blastocysts havasi vasiyana dumbu uye naizvozvo, regai kusvika embryonic nguva. Vazhinji vavo vane hasha zvokukura zvirwere. Saka, hunhu hahubvumiri kuberekwa nonviable vanhu.

3-8 mavhiki. Rinotanga munguva embryo kukura. Panguva iyi, kubatana kwetunhu namakemikari siyana mwoyo mai kutapata, kudzivirira kuramba mwana sezvo zvinyama dzomuviri worumwe dumbu. Uyezve, achishingaira synthesized kemikari kwevanhu chorionic gonadotropin (pahwaro iyo pamuviri iri panoonekwa) - nayo anomira kuenda kumwedzi nevakadzi. Uyewo, vakawedzera mwero metabolic (10-25%), afemeruke, kufamba kweropa. Kutanga 3 mavhiki mwana asati aberekwa ari inonyatsoshanda zvikuru munguva kukura. The trimester rokutanga pakukura - munguva morphogenesis, kana paine Tab kuti nyama yose kwevanhu uye nhengo. Masayendisiti anoti iyi ndiyo zvemberi uye vakarongeka mashandiro kuti iwe unogona kufungidzira! Kunyange kuvakwa uye kushanda satellites pamwe kutora chikamu ezviuru zvevanhu uye zvemagetsi havana yakaoma muitiro, sezvo intrauterine emunhu!

Panguva iyi, mumwe muzvizhinji kuti vaingoerekana pamuviri chokuita pamberi kwakakomba chromosomal kuremara. Zviri zvakare mukuru ndingangokuvara nokupfupfudzika nokuda kukodzera ezvinhu ari womukadzi dumbu. Chete 1 of 6 tuvana vararame kusvika 8 mavhiki. Panguva iyi, embryo chinonyanya tisanzwe zvinokuvadza kubva kunze, saka mukadzi ane kungwarira chaizvo uye kusatora mushonga, doro, kusvuta.

Panoperera iyi kukanganisa Morphology mwana kwakaoma zvisingaiti.

Muna 3 Mumasvondo embryo Yakakura kupfuura yepakutanga zviuru 10 nguva.

On the 3rd vhiki okukura akaumba Neural chubhu - uropi uye musana kumumvuri yakatanga achiine rukuvhute tambo uye placenta.

Vhiki 4 - anoteya mwoyo. Pakazopera 4 wamavhiki, rwunotanga kurova aparadzane mubereki. Dzinotanga kuumbika maziso. Neural chubhu rwunopera. Muviri kukura zvazvingava zviri anenge 1 mm pazuva.

Vhiki 5 - atova zvinogoneka kuona maoko netsoka mwana.

Vhiki 6 - dzinotanga kuumbika sikarudzi. At kukundikana padanho rino anogona inotungamirwa kwevanhu vane zvinoitwa aroorane. Iyi embryo atova kuonekwa pamusoro Ultrasound.

7 vhiki, paumbwe urema vakadaro sezvo mumukaha mukanwa. Zvakaumba marangwanda.

By vhiki 8 rinopedzisa paumbwe makuru zvomukati. A nokukurumidza kukura uropi.

Kutanga kubva 9 mavhiki chinoratidza kutanga wokupedzisira nguva fetus. With mavhiki maternity 13 rinotanga trimester akazvitakura wechipiri. Iyi mwana vanotarisa sezvinoita achangoberekwa, chete duku. Kunyange musoro achiri disproportionately guru. Muviri anombotwasanudza uye miforo. amai vanepamuviri anoti simba. Pasinei ngozi, anowedzera kukura, somunhu mutemo, riri kubudirira. Panguva iyi uropi anotanga kushanda.

At musi papera hausi kuenda kuchinja chinokosha: fetus inokura kukura, nani nhengo dzayo, kune rechi16 vhiki, amai kare anonzwa sangano aro vhiki 20 dzinotanga kukura bvudzi.

By 7 months mudumbu kare anogona kufema nomuzvarirwo, kugaya zvokudya, zvakazara kushanda excretory hurongwa. In zvinoitirwawo vakurumidze kusununguka mwana anogona kurarama hwavo.

Zvinonzi akaratidza kuti mumazuva okupedzisira 3 months zvayo pamuviri kukura, mwana atova kukwanisa kupindura nyika yakatipoteredza. Inofamba achishingaira, hiccups, anochema. Kunotangwa zvinhu pfungwa: kunhuwidza, kubata, kuravidza, kuona, kunzwa. With Mavhiki 16 mwana ikasakendenga ruzha (izwi chinosiyanisa) chiedza.

Somugumisiro, mumwe mwana zuva 266 pakupedzisira anogamuchira musoro pasi nzvimbo uye akagadzirira pakuzvarwa.

5 chete% of kwakacherechedzwa kwatangwa fetus rinooma mukupera pamuviri (pashure pemavhiki 22).

Fetus vhiki nevhiki - chinokosha ruzivo nokuti mai - kuziva kwemasayendisiti nomumwe muviri wayo uye ngozi chokuita navo, nokuti vanachiremba - kuongorora kukura mudumbu, uye nzanga yose - kunzwisisa kuti kubva nguva pamuviri anotanga akurumidze uye chakaoma kunzwisisa mutoo kuvaka upenyu hutsva, kwete chinyakare biomass.