Chilakolako chathupi cha mayi woyang'anira ndikudziwa momveka bwino zomwe mwanayo amawoneka mu masabata khumi ndi awiri, kaya akukula bwino, ndi zomwe zimatengera kukhala mkati mwa chiberekero. Chinthu chokhacho chenicheni cha "kufufuza" mwana wake wam'tsogolo ndi kugwiritsa ntchito makina a ultrasound. Ndiyo amene amapereka mpata wofufuza mwanayo mwatsatanetsatane, kudziwa nthawi yomwe ali ndi mimba ndi zina zotero.
Ultrasound ya fetus pamasabata 12
Musaganizire kuti mukuyang'ana pawindo la nkhope, mukuwoneka ngati mwamuna kapena mayi. Mphulupulu pa masabata khumi ndi awiri ndi gulu la maselo omwe amapangidwa kukhala zamoyo zam'mimba, zomwe zimayambira ziwalo za m'tsogolo. Pamalo a mtima muli chubu, yomwe ikugwirizanitsa kale ndipo kayendetsedwe kameneka kangakhale kovuta kugunda mtima. Amagwira ntchito, ndipo mkati mwake pali valves, septa ndi mitsempha ya minofu ya mtima.
Kachilombo ka fetus pa masabata khumi ndi awiri adzawonetsa kayendedwe kowonjezera kowopsa kwa magazi ndi zinthu zofunikira kudzera mu chingwe cha umbilical ndi placenta.
Mimbayo ndi yaying'ono kwambiri ndipo imakhala yopitirira 80 mm, koma msana ukuyamba kukula ndipo ubongo umayikidwa. Posakhalitsa padzawoneka mndandanda wa zong'onong'ono ndi miyendo, pali maso kale, ngakhale osaphimbidwa ndi maso. Mimbayo imatuluka pang'ono "kuyang'ana" chilengedwe.
Kutha ndi chitukuko cha embryonic fetal pamasabata 11-12, ndipo sichidzatchedwanso fetus kapena mluza, chifukwa chimakhudzidwa kwambiri ndi chiberekero, ndipo chimakhala chokwanira kumoyo. Thupi lidutsa njira yopanga mapangidwe oyenerera pa nthawiyi ndipo ili wokonzeka kupanga ziwalo zonse zofunika ndi machitidwe.
Mayiyo akadali ndi mwayi wochotsa mwanayo kapena kumupatsa mpata wobadwira. Mwana wamwamuna wojambula bwino komanso maphunziro oyenera a ma geneeni adzawonetsa kukhalapo kosafunikira mu chitukuko ndipo adzakupatsani zambiri zambiri kuti muganizidwe.