8 vhiki pamuviri. fetus

Fetus pa 8 mavhiki pamuviri kunosvika 14-20 mm pakukura. Mwana anotova zvose hurongwa uye zvomukati, havana opera pavakazofa inotungamirwa. The yasara Mwedzi asati azvarwa chete nokutengesa zvinovaka muviri uye okisijeni kuti placenta, iyo iri nguva mberi kuvandudzika kwayo.

Kunyange zvazvo ganda wemwana ndiwo anenge segirazi zvino vachiri, nezvanza zvamaoko vari kare Vakaonekwa ziya omumuviri, izvo zvichiri kwete kushanda. At 8 mavhiki pamuviri chiso mafufu zviri anenge kuumbwa. Eyes yainyanya haachatauri, asi zvakangonyuka optic tsinga, kuumbwa the retina, crystalline izvo uye cornea. Rinopera paumbwe namafungiro, shaya mwana kuwana zvakajairika chimiro. Mumuromo, pane mutauro kuti yave zvakanaka dzakabudirira kuravira wotungira. Familiar kwatiri vorudzii anowana yepamhino waro mhango ndiro basa dzidzo Mabumba akaoma olfactory tsinga. Asi pano chiitiko mumwe hwema mwana haagoni asi, nokuti nasal mazambuko akafukidzwa zvachose mucous plugs. Uyewo, kuruvanze nzeve achiumbwa iri izwi.

Akawana pfupa maoko netsoka, anouya padariro kuibvisa pamusoro shwashwa, izvo acharamba pashure pokuberekwa. Rinotanga paumbwe mapfundo. At 8 mavhiki pamuviri Ultrasound pachena inooneka fetus kufambisa, uye ichi hazvishamisi, sezvo panguva iyoyo tsandanyama vakatobatana yakatanga zvakanaka. Zvakaumba kutsenga netsandanyama. Pazvibato vakatsunga ari mwana vadyi, uyewo pamusoro maoko kare dzakabudirira minwe. Kuti dumbu rinotangira chiduku, nembudzana anotora inonzi fetus chinzvimbo, raakanga ainawo pamuviri. Mwana runonditsikirira mubato kuti chipfuva, makumbo wakarerekera panguva pamagaro uye ibvi majoini. Kana okumusoro migumo minwe pakati partition wakaparadzwa zvachose, nechepasi, vachiri vanochengeta. Izvi imhaka yokuti makumbo vari lagging shure maoko, kuchine aumbwa, mapfundo netsoka, saka minwe vari fused.

At 8 vhiki pamuviri, mwana wacho mwoyo 4-yokuvata, fetus ropa kuyerera nzira uye neburi pakati atria zvikaramba. It achada mbudzana chero havazokwanisi kuita yakazvimirira yokutanga mweya, ichi imhaka yokuti intra-uterine fetus kuparadzirwa kunoitika kwete somunhu achangoberekwa, chikuru mutumbi placenta pane mumapapu.
Ura miforo, pova muzvizhinji kuti muzvishwe uye achiita mudumbu majana kumativi ayo akabatana, muitiro uyu zvinova zvishoma nzvimbo, uye ari zvishoma pachena achiine rukuvhute tambo (embryonal heniya). Nokuda muitiro physiology uye ndiwo chaiwo, kuti vanenge 11 vhiki pamuviri, ura kudzokera abdominal mhango.

At 8 mavhiki pamuviri, fetus paumbwe pasi. In vasikana, asi ovaries chinoitika Tab, vakomana manhu. Ari mwana hadzi iyi zvinotungamirira chizvarwa mazai, izvo mune ramangwana richaperera paakaziva kwoupenyu hwose. Nemamwe mashoko - kusvika 8 mavhiki pamuviri vakaisa vazukuru utano.

Yokubereka tubercle, vakomana nevasikana zvakafanana, anotarira zvakangofanana, saka kuziva zvepabonde mwana kuchigere zvinobvira.

Nokuti vakadzi vane pamuviri vari 8 mavhiki pane ngozi yokubva pamuviri yakakura, kazhinji vaingoerekana pamuviri kunoitika chaiyo panguva iyi. Brown kana kusvibisa, uye marwadzo nezvekufadza kuti kuminyuka mudumbu uye dzakaderera shure, chiratidzo zvichibvira dambudziko rokutanga. Naizvozvo, kana zviratidzo zvakafanana zvinoda pakarepo muchipatara. Zvinofanira kungwarira kuchinja kwakadaro mumuviri uye vanofanira pakarepo kutaura chiremba.