Mavhiki matanhatu ekuzvitakura - kukura kwe fetal

Sezvo mutemo, pamusana wechitanhatu kana kuti yechina yekuita pamuviri wevhiki, vanaamai vari mberi vanenge vasina chokwadi nehupenyu hwavo hunofadza. Zuva rimwe nerimwe zviratidzo zvinowedzera zvakajeka: kurwara mangwanani uye kurutsira, kushaya simba uye kurara, kunyorova kuneta, kufara uye zvose izvi "kunaka" maererano nechekupedzisira kwemavhiki maviri hazvikwanisi kuonekwa kune PMS.

Nokudaro, zvinonzwisisika kuti panguva ino vanaamai vasina kushivirira vakanga vatoita ultrasound uye vakanyoreswa mukubvunzurudzwa kwevakadzi.

Zviratidzo zvekukura kwemucheche pamasvondo matanhatu kusvika pakuberekwa

Zvechokwadi, vhiki nhatu inongova chikamu chiduku chenzira, asi munhu muduku, uyo akazosvika pakukura kwe 4-5 mm, anoenderera mberi kukura uye kukura zvakasimba. Panguva iyi, nheyo dzezvikamu zvose uye maitiro zvakatoiswa, uye dzimwe dzakatotanga kushanda. Saka, chii chakabudirira icho chibereko chinogona kuzvirumbidza kusvika pakuguma kwechishanu uye kutanga kwevhiki yechitanhatu yekufambira mberi:

1. Panguva ino, hurongwa hwehutano hwemwana hunenge hwave huchiumbwa, rudiment rweuropi uye marora emapfupa anooneka, kuumbwa kwemarara uye convolutions kunotanga.
2. Chiropa kid inobereka masero eropa uye inobatanidzwa mukushandura kweropa.
3. Zvishoma nezvishoma, nzeve yomukati inoumbwa.
4. Pavhiki 5-6 yekutakura, nhengo dzomukati dzomukati dzinoramba dzichikura, dzakadai semapapu, mudumbu, chiropa, pancreas.
5. Uyewo panguva ino, rudiments yemakumbo nemakumbo zvatove zvaonekwa, nhengo huru yezvirwere zvemusununguko ndiyo thymus.
6. Nhengo dzepabonde dzisati dzagadzirwa, saka hazvibviri kugona kurara kwechecheche.

Zvakakosha kuziva kuti embryo yevhiki yechitanhatu yekuzvitakura inowanzoshungurudzika uye inogadziriswa, saka vakadzi vanofanira kudzivisa chero zvinhu zvisina kunaka zvingakanganisa kukura nekukura kwechecheche. Izvi zvinosanganisira kusvuta (kunyange kutadza), kushandiswa kwezvinwiwa zvinodhaka nemimwe mishonga, kushushikana, kuneta, kutonhora nemhando dzose dzezvirwere.