Kukula kwa Embryo ndi ndondomeko yaitali, yovuta komanso yochititsa chidwi. Pambuyo pa kusanganikirana kwa dzira kakang'ono ndi umuna mu miyezi 9 yokha munthu watsopano adzabadwira. Pakukula kwake, mwana wamtsogolo adzadutsa muzigawo zingapo, ndi zomwe zimatchedwa nthawi yovuta kwambiri ya kukula kwa mimba, ndipo nthawi zonse adzatchedwa mwana wosabadwa kapena kamwana kamodzi, kenaka chipatsocho, mpaka nthawi yoberekera.
Kukula kwa mimba
Kukula kwa mluza wa munthu kumayamba kuchokera pakangoyamba kwa mimba, kusanganikirana kwa spermatozoon ndi ovum ndi mapangidwe a zygote, omwe masiku angapo adzadutsa magawo angapo. Pa tsiku lachinayi ndi mtundu wa mabulosi a rasipiberi mu mawonekedwe, ndipo uli ndi maselo 58. Pa maselowa, 5 adzafunika kupanga pulasitala, chorion ndi umbilical chingwe, otsala 53 - adzapitiriza kukula kwa mwanayo.
Kuyambira pa 7 mpaka 14 kuchokera tsiku la pathupi, amayi amtsogolo ayenera kukhala osamala kwambiri - iyi ndi nthawi yoyamba yovuta ya mimba: nthawi yokhazikika kwa mimbayo mu chiberekero. Mphunguyo siingayambike pa zifukwa zambiri, mwa izi:
- kukhudzana ndi zinthu zoopsa;
- zochitika zolimbitsa thupi;
- chosokoneza;
- zozama;
- matenda a chikhalidwe ndi kamvekedwe ka chiberekero.
Ngati atayikidwa bwino, kamwana kameneka kamakhala pamtanda wa uterine pafupi ndi zombo zapamwamba, zomwe zimapereka zakudya ndi chitukuko.
Kuchokera masiku 13 mpaka 18 mwana wakhanda akuzunguliridwa ndi khoma lachiberekero cha chiberekero, ndipo ali pafupi kwambiri ndi myometrium. Pankhaniyi, envelopu ya mluza imapanga chorionic villi, yomwe idzakhala maziko a dzira la fetal, choriyoni ndi tsogolo la umbilical. Panthawiyi, kugawanika kwa maselo kumayambika, kupanga mapangidwe oyambirira, ndi amniotic madzi.
Kuchokera masiku 18-21, pamene mtima wa mluza umayamba kuwomba, yang'anani kuti mwana wamtsogolo adzapambana pa ultrasound. Izi zimachitidwa kuti azindikire mimba yozizira, imene nthawi zina imachitika kumayambiriro oyambirira a kukula kwa mluza ndipo ikuphatikizidwa ndi kupezeka kwa mapangidwe a mtima.
Mwezi woyamba wa mimba ukufika kumapeto (miyezi ndi masabata mu zobvuta zimawerengedwa kuyambira kumapeto kwa msambo, ndi masiku kuchokera pakulera).
Amayamba masabata 5-8, mwezi wachiwiri wa mimba. Iyenso amaonedwa kuti ndi yovuta, monga ziwalo zonse ndi ndondomeko zimayikidwa. Panthawiyi, chimodzi mwa ziwalo zikuluzikuluzi zimapangidwira - umbilical cord, yomwe imakhala ndi mitsempha ya mitsempha ndi mitsempha, ndipo imapereka zakudya zopatsa thanzi komanso mavitamini a mluza, pamene phalapakati panthawi yomwe ali ndi mimba , yomwe imatenga sabata pambuyo pake, imalepheretsa magazi a mayi ndi mwana, ndi ntchito yotchedwa hematopoietic.
Pa tsiku la 20 mphambu 22 kuchokera pamene mayi adatenga mimba, kupanga mapangidwe a ubongo ndi msana, m'mimba, kenaka patapita masiku anai, maso ake, makutu, mphuno, kamwa, mchira umaonekera bwino. Kuyambira mwezi wachiwiri wa chitukuko, mwana wosabadwayo amatchedwa kale mwana. Panthawi imeneyi, CTE (coccygeal parietal size) ya embryo ndi 5-8 mm. Mutu uli pazingwe zolondola ku thunthu, miyendo ikukula, mtima umapangidwa.
Pa sabata lachisanu ndi chimodzi, CTE ya mluza imakula mpaka 15 mm, mchira ukugwera ku thunthu. Kuyambira pa masabata asanu ndi awiri ndi asanu ndi atatu (8-8) - mano, minofu ya minofu ya m'mimba imapangidwa. Mafupa ndi ochepa kwambiri, owonda kwambiri,
Mimba imatengera nkhope ya munthu, mchira umatha, miyendo imapangidwa. Kenaka amatsatira nthawi ina yovuta, chifukwa ziwalo zonse zatsopano zakhala zosaopsa kwambiri ku zinthu zilizonse zoopsa. Koma mwanayo samatchedwanso mimba. Kotero, ife tinalongosola njira ya kukula kwa mluza kwathunthu.