Zuva rimwe nerimwe dumbu remukadzi ane pamuviri rinokura, uye maererano naizvozvo, mwana akaberekwa achakurumidza kuberekwa anowedzera. Zuva rimwe nerimwe harina kupfuura zvisina maturo - kukura, kubata makumbo, nhengo dzinokura, misumari, meno uye vhudzi zvinoonekwa. Kubvumidzwa "kukura" kwecheche inoonekwa semavhiki. Saka, mummies, vhiki nevhiki, kurarama mukutarisira, kutonga kukura nekubatsirwa kwe ultrasound uye marudzi ose ekuongorora.
Embryo pavhiki makumi masere
Ngatitsvakei pamwe chete kuti chii chinogona kuve nemubhedha kwemavhiki makumi mana, chimiro chayo chine, chiyero chei uye chiyero chemucheche pane masvondo makumi masere. Sezvo mutemo, mumutambo wechipiri, pamusi we14-26 wevhiki unofanirwa kuti uwane ultrasound ye fetus . Pachine mavhiki masere ekuberekwa, zviri pachena kuti nzvimbo ye fetus haina kugadziriswa, sezvo inowanzochinja nzvimbo yayo, uye izvi zvinonzwisiswa zvakanaka nemukadzi.
Mavhiki masere ekuberekwa - fetal size
Urefu hwemwana pavhiki 19 hunoramba huchiwedzera. Tinopa mavhareji maonero e fetometry (ukuru) ye fetus 19 masvondo ne ultrasound muchidimbu:
- biparietal size (BPR masvondo makumi maviri nemashanu) i 41-49 mm;
- ukuru hwema frontal-occipital (LZ) is 53-63 mm;
- mutsara we fetal head (OG) ndeye 142-174 mm;
- rutivi rwemuviri we fetal (OJ) is 114 -154 mm.
Pamasvondo makumi masere ekuberekwa, uremu hwemucheche paavhareji ndewe 250 g, iyo coccygeal parietal size inenge 15 cm.
Chii chibereko muvhiki makumi mana?
Pazera iri, fetus inotanga kuumba nguva yekurara uye yakamuka, uye inowirirana nehurumende yechecheche - maawa 18 ekurara anotsiva maawa matanhatu ekumuka. Masaya ake akaumbwa, pane mazamu emakungwa nemazino anogara. Pachiedza che ultrasound, unogona kuona kuti mwana anobudisa sei rurimi rwake ozarura muromo wake. Panguva ino mwana anenge atovimbisa asingatyi musoro uye anogona kuzvishandura. Zvigunwe pamaoko zvinobata makumbo, tambo yembilical - saka mwana anodzidza nzvimbo yake.
Kukura kwemuviri pamasvondo makumi emanomwe ekudzivirira
Pamasvondo makumi maviri nemashanu pasi pechibereko chinowanikwa paminwe miviri inotenderera pasi pedhiyo. Iyo inoramba ichingokura uye ichikwira kumusoro, uremu hwechibereko pamavhiki makumi masere makumi manomwe nemasere inenge 320 g.Iyo inogona kuenzaniswa pamwero we 1,3 cm pasi pevhavha. Panguva ino, mhumbu yatova yakakura kwazvo; inogona kuonekwa neziso rakashama, kunyange kana yakabatwa mune zvipfeko. Ukuru hwemuviri pavhiki yekuma19 kunowedzera zvikuru, anenge masendimita mashanu pavhiki.