Kuberekwa kwevhiki 28 - kufamba kwe fetal

Vhiki yegumi nemana yekudzivirira ibasa guru rekuzvitakura, sezvo rinopedza chemiti yechipiri uye rinoratidza kuchinja kusvika pakupedzisira kwekutakura mwana.

Kureba kwema fetus pamasvondo makumi maviri nemasere ekupera kwemazuva makumi matatu nemasere (37 cm). Kurema komwana kunenge 1 kg.

Pamasvondo makumi maviri nemasere, mahara europi anotanga kuibva. Pamusoro mumusoro inokura vhudzi, kureba uye thicken mashizha uye eyelashes. Maziso anotanga kuzarura, haasisina kufukidza membrane yepupillary. Pamusana pekuwedzera kwehuwandu hwemafuta mashoma, zvikamu zvemucheche zvinotanga kuvhara.

Mwoyo inokwiwa inoputika ne-frequency ya 150 bpm. Inenge dzose zvivako zvekufema zvemuviri wemwana zvinoumbwa. Kana mwana akazvarwa nguva isati yasvika panguva iyi, iye zvino ane mikana yakakwana yekurarama.

Kutora basa pavhiki 28

Kubvira panguva ino yekukura mwana anokura zvakanyanya nokukurumidza, kufamba kwake kunotanga kukwana kuburikidza nekukura kwechizvaro chaamai. Pavhiki 28 yekuzvitakura, fetus haina kuchinja maitiro ayo kakawanda, asi inogona kuchinja uye inopinduka uye pamwe chete.

Asi kazhinji kacho pavhiki 28, nzvimbo ye fetus inoshanduka kune iyo iyo ichaonekwa.

Vana vazhinji vanotendeukira kune "musoro" pasi, iyo ndiyo inonyanya kufanana uye inobatsira pakubereka. Asi vamwe vana vangave vachiri munzvimbo isina kururama (nemakumbo avo kana madonho pasi). Mumavhiki mashomanana, mamiriro ezvinhu aya anogona kuchinja kune akangwara, kunyange vamwe vana vangada kugara munzvimbo iyi kusvika pakuzvarwa.

Izvi zvinoreva kuti pamasvondo makumi mana nemasere ivo vachawana iyo inonzi "pelvic" kana shanduro inopesana ye fetus. Zvisinei, kana kuberekwa kwezvakaberekwa kuchiri kuve nekugonekana nekutaura kwepachivi, mune zvakaitika kune vanochera matambudziko, chirwere chekudya chinofanira kushandiswa.