Iiveki ezimbalwa zokuqala zokukhulelwa zibaluleke kakhulu, kuba ngeli thuba umntwana usakhula kwaye utshintshwe ngokunyuka kunye nemida. Kungoku ngeli xesha zonke izitho ezisisiseko kunye neenkqubo zibekwe kwaye ziqale ukudala.
Khumbula ukuba ixesha lokubeleka kunye "nobudala" bomntwana aluhambisani: okokuqala kukuhlala kunexesha elidlulileyo kwiiveki ezimbini, kuba ukuqala kokukhulelwa kwababelethisi kuthatha usuku lokuqala lokuya esikhathini. Kule nqaku, siza kuhlolisisa ukuba "yimpumelelo" i-embryo iphumelele kwiiveki ezisibhozo ezithintekayo.
Izithelo kwiiveki eziyi-8 - ubukhulu
Ingumntwana (mhlawumbi, i-embryo, ixesha elifanelekileyo) libukeka ngathi kwiiveki eziyi-8? Ngokubhekisele ngakumbi kufana nomntu, nangona izitho zingagqitywanga ngokupheleleyo, kwaye umva uya kuba ngumsila. Ubungakanani bomntwana ukusuka kwi-coccyx ukuya phezulu (okubizwa ngokuba yi-coccyx-parietal size, okanye i-KTP) yi-1.5-2 cm. Oku akusikho izithelo ze-raspberry. Ewe, kwaye bunzima malunga ne-3 g. Ubungakanani biparietal yekhanda lembungu li-6 mm, kwaye ububanzi besikhwama se-yolk ngu-4.5 mm.
Ngamanye amaxesha uphando lwe-ultrasound lubonisa ukuba ubungakanani bomntwana obudala kwiiveki ezi-8 zesisu asihambisani nomgangatho. Esi akusona isizathu sokwesaba. Inyani kukuba ngamanye amaxesha ukuphuhliswa nokukhula kombindi wesibindi kubonakala ngokukhawuleza. Esinye isizathu sinokwenzeka: ukuchumisa kuya kufika ekupheleni komjikelezo wesini. Kwaye, kwaye kwelinye imeko inkwenkwe iya kubamba kwaye mhlawumbi iya kufumana "iinkcukacha".
Ukuphuhliswa kwentlungu 8-9 iiveki
Kwiiveki ezi-7-8 i-fetus ayibukeli njengowomntu: isalumkile, ikhanda litshintshelwe kwiindawo. Nangona kunjalo, ekupheleni kweveki ye-8 yokukhulelwa kwaye ekuqaleni kweyesithoba, i-torso nentamo iyaqala ukulungiswa. Isisu kunye namathumbu athabatha ifom yokugqibela kwaye ahlala kwindawo yawo esigxina. Ngenxa yokuphuhliswa kwesifuba, intliziyo ihamba ngokukhawuleza ngaphakathi kwikamva elizayo.
Ukuphatha kunye nemilenze zihluke ngokuthe ngqo. Kulo mbandela we-fetus kwiveki ye-8 yokukhulelwa, ungabona i-ulnar fossa kunye nesandla, nakwisiko-iingcingo zeminwe. Kancinci kamva, iminwe iya kufuma, kwaye iimbumba eziphakathi kwazo ziya kutshabalala. Imilenze ayitshintshi kangako. Ukwakhiwa kunye nokuphuhliswa kwemizimba, amathambo kunye ne-cartilage ivule ngokugcwele.
Intloko yesibindi somntu kwiiveki eziyi-8 phantse ubude bayo ubude. Ukubunjwa kobuso kubonakala. I-lens yesiso ivalwe yi-iris emnyama, i-retina yenziwa. Umgqomo wokuqala we-branchial uguqulwa kancane ube ngumhlathi ophezulu nangaphantsi. Sekunokukwazi ukuhlukanisa umgca we-spout. Iimpawu ze-auricles ziphantsi kakhulu, kodwa kungekudala ziya kuthatha indawo yazo "evumelekileyo".
Intambo yesigxina kunye ne-placenta ziphuhlisa-unxibelelwano phakathi koomama nosana. Kwindonga ye-yolk sac, iiseli zokuqala zesini ziyavela. Kanye kunye negazi baya kudluliselwa kwiingcingo zeentlobano zesini. Ukuqulunqa isisu somzimba, kodwa kusenakwenzeka ukucacisa ngesondo somntwana.
Inkqubo yesisa iyaqhubeka nokuphuhliswa, ingakumbi ingqondo ikhula ngokunyanisekileyo. Kungakhathaliseki ukuba kunzima kangakanani ukukholelwa, ezinye izazinzulu zithi i-embryo iphupha iiveki ezi-7-8. Ukongezelela, uphuhliso
Ulusu lomntwana lusalunci, lubala. Ngayo imilambo yegazi ebonakalayo, ingqondo kunye nezinye izitho.
I-Fetus ngeveki 8 yokukhulelwa - Ingozi
Ukususela kumanyathelo okuqala okukhulelwa, zonke iinkqubo ezibalulekileyo kunye nezitho zibekiwe, nayiphi na ukungaphumeleli kunokukhokelela kwimiphumo ebuhlungu- ukukhulelwa okuqhubekayo, ukukhulelwa komzimba, ukukhulelwa komzimba, ukukhula komzimba, ukukhulelwa komzimba. Yingakho ngoku kuyimfuneko ukuba uqaphele kakhulu: ungaphuzi utswala (nangona naluphi ubungakanani), musa ukutshaya, ungathathi iyeza xa kunokwenzeka.