Amamama ezayo: uphuhliso lwe-embryo ngeveki

Ukubonakala komntwana ekukhanyeni kuyinkqubo enzima kakhulu kwaye inoxanduva. Wonke umama ozayo ufuna ukwazi ukuba i-embryo ikhula ngeiveki. Emva koko, le nyathelo ifihliwe ngokuqinisekileyo emehlweni abantu, kodwa ifundwe ngokugqithisileyo ngabazinzulu.

Ngoko, ukuphuhliswa kwembungu ngeeveki

Iiyure ezimbalwa zokuqala emva kokukhulelwa. I-spermatozoon ingena kwiqanda kwaye inkqubo yokuchumisa iyenzeka. Ukufikelela kwiiveki ezisibhozo, isiqhamo esiphumela sibizwa ngokuthi "imbungu".

1-2 iiveki . Kukho ukwahlukana okusebenzayo kweeseli. I-embryo ihamba kunye ne-tube fallopian, ingena kwisibeleko kwaye ifakwe kwi-mucosa yayo ekupheleni kweveki yesibini. Ukwabelana ngesondo lomntwana ongakazalwa sele sele kumiselwe kweli nqanaba, kwaye kuxhomekeke kwisethi yama-chromosomes equlethe isidoda esasilungisa iqanda.

3-4 iiiveki . Nangona ukuba isiqhamo sincinci, intliziyo yakhe iqala ukuphosa. Kancinci inkqubo yeentlanzi, ithambo kunye nemisipha, iyazalwa. Njengomthetho, ngeli xesha le nto umfazi uqala ukuqagela ngokukhulelwa kwakhe, ekubeni isisu singekho.

Iveki yesi-5 . Ubude bombindi bu malunga nama-6-9m. Sele sele ikhupha ingqondo kunye nomgudu womgogodla, inkqubo ye-nervous central iyenziwa. Inhliziyo iyabuyisela, izandla, iinyawo, intloko kunye nemingxuma yamehlo, umlomo neempumlo zivela.

Ngeveki 6 . I-placenta yenziwe. Ngethuba lexesha ukhonza inkonyana ngesibindi, imiphunga, izintso, isisu.

Iveki yesi-7 . Ubude bombindi sele sele bu-12 millimeters, kwaye ubunzima buyi-1 gram. I-fetus inesiphelo sayo se- vestibula kwaye iqala ukuhamba, kodwa ngenxa yobuncinane obuhambayo bhinqa lungazivekanga nhlobo.

Iveki ye-8 . Ukuphuhliswa komntwana kwiiveki zokukhulelwa kuqhubeka ngokuzenzekelayo. I-embryo sele isungule umzimba. Unokwahlula phakathi kobuso, impumlo, indlebe. Inkqubo ye-nervous continues to improve and skeleton grow. Izakhiwo zokuqala zezitho zobulili zivela.

Iveki ye-9 . Umzimba wonke usana sele usenomdla. Unako ukuzichaphazela, intambo yomlomo.

Kwiiveki ezi-10-13 . Eli nqanaba yenye yeyona nto ibaluleke kakhulu kwinkqubo yokuphuhliswa kwe- intrauterine, njengoko inkqubo yeentlanzi kunye namalungu amaninzi akhula ngokukhawuleza. Umntwana uqala ukwenza uhambo lokuqala lokugwinya. Ngenxa yesiphumo esisebenzayo samathambo, ubukhulu bayo bunyuke ngokukhawuleza, okubandakanya ukukhula kwesisu esithandayo. Ngeli thuba, umntwana uva, iintambo zezwi zenziwa.

14-16 iiveki . Izintso kunye nesibindi ziqala ukusebenza, umntwana uqala ukuphefumula kwaye aphephe, uvula amehlo. Ukwandiswa komsebenzi wemoto ngokuphawulekayo.

Iiveki ezingama-17-20 . Iimvulo zezithuba zeveki ngeli xesha zibonisa ukuba zonke iinxalenye zomzimba sele zibonakala zibonakala ngokucacileyo. Umntwana uvula umlomo wakhe aze adibanise. Ngenxa yokuba ubukhulu bayo bude budlulile ngamasentimitha angama-14, umama okhuselekileyo uqala ukuziva ukutshutshiswa okulula.

Iiveki ezingama-21-25 . Ukwandisa ngokukhawuleza ubunzima bomntwana, iifowuni zokuqala zeoli zibonakala. Imiphunga yengane iphuhliswe ngokwaneleyo, kwaye xa kwenzeka ukubonakala kwangaphambi kweveki yama-23 kukho ithuba elikhulu lokuphila kunye neyeza eliphezulu. Intliziyo yomntwana iqala ukuphulaphulwa, ukuba ubeka indlebe yakho kwisisu somfazi okhulelwe.

26-30 iiveki . Ukuphuhliswa kwembungu kweeveki ngeli xesha kusebenza kakhulu. Ngoko ke, i-reflex esondayo isungulwa, iinwele zokuqala entloko kunye ne-eyelashes zingabonakala, izipikili zikhula.

31-35 iiveki. Ulusu lomntwana luba lukhulu. Ngexesha lokuvuka, uvula amehlo akhe, uvale ephupheni. Ingqondo ikhula ngokunyanisekileyo, inani le-convolutions landa. Imipu yenziwe ngokugcwele, i-reflex yokubamba iyaqhubeka.

36-40 iiveki . Isikhathi sokulinda nokulungiselela ukuzalwa. Ukususela kulo mzuzwana, unokulindela ukuqhuma kokuqala - i-harbingers. Isisu sisinciphisa, umlomo wesibeletho uncishiswe. Umzimba ulungiselela ukuzala. Kule nqanaba, ukuphuhliswa kombungu kuyigqiba iiveki. Ingane iyancipha, iphosa ngaphantsi, kuba ngenxa yobukhulu obukhulu buba nzima. Ukususela kwiintsuku ezingama-38 umntwana uthathwa njengolupheleleyo.