Ixesha lokuthoba lilinganiselwa kwiiveki, kodwa iiveki zinokuthi zithinteke (oko kukuthi, zibalwa ukusuka ekukhulelweni) kunye nesithintelo (oko kukuthi, kubalwa ukusuka ngomhla wokugqibela ngenyanga). Ukulinganisa ixesha lokugaya kwiiveki ezinqabileyo kuyinto ekhethiweyo kunye neqhelekileyo, kuba kungenakwenzeka ukucacisa ngokuchanekileyo umhla wokuzala. Umzekelo, iiveki ezi-7 zokubeleka zokukhulelwa zingangqinelana neiveki ezi-5 ukusuka ekukhulelweni (ukuba ukuchumisa kweqanda kwenzeka ngeveki 2-3 yomjikelezo), kunye neiveki ezi-4 ukususela ekukhulelwe (ukuba ukukhulelwa kwenzeka ngasekupheleni komjikelezo).
Iiveki ezi-7 ezinqabileyo zihlandlo zexesha elikhuni lokukhulelwa, kuba ngeli xesha umzimba ophuzi awukwazi ukuhlangabezana nemisebenzi yayo yokukhulelwa nokukhupha imisebenzi yayo kwi-placenta. Nangona kunjalo, i-placenta ayilungele njalo loo mthwalo, ngenxa yento enokwenzeka ntoni ngokuphambuka komzimba. Ukuba ibhinqa linesonto eli-7 lokukhulelwa, iimpawu zokuphuphuma kwesisu akumele zimlumke nje kuphela, kodwa mfumene ukuba abone udokotela ngokukhawuleza. Iimpawu ezinjalo ziquka:
- ukubetha iintlungu kwisisu esezantsi;
- ukubonakala.
I-Embryo kwiiveki ezi-7 ezinzima
Ekupheleni kweiveki ezi-7 umntwana usenokuthiwa ngumntwana, ekubeni ixesha lokuphuhliswa kwalo liqwalaselwa lipheleleyo. Nangona umntwana engenawo inkqubo ye-endocrine ne-nervous, ubuchopho sele sele bume. Ngaphandle koko, ufana nomntu, bobabini ngaphandle nangaphakathi. Iigill ezikhoyo kwiinqanaba zokuqala zophuhliso, zaphela zaphela, kodwa umsila omncinci usaphila. Isiqhamo sihamba kancane, indawo apho kuya kuba khona intamo yakhe. Amalungu ayabonakala ngokucacileyo, kodwa iminwe ayayihlulwa. Iipeni zikhula ngokukhawuleza kunemilenze.
Ubuso obuncinane bomntwana buhlotshisiwe, umlomo kunye namakha abonakalayo, amaqatha aqala ukwenza. Ekupheleni kweli xesha lokukhulelwa, uya kuba necala lesini, apho emva koko izabelo zesini ziza kubumba. Ngoku akunakwenzeka ukucacisa ubulili bomntwana, kodwa kwiijethi ezi zichongiwe ngaphambili.
Iiveki ezi-7 zokukhulelwa (ixesha elithintekayo) lithetha ukuba umntwana ekude angaba ngama-millimitha ama-5 kuya kuma-13, kwaye ubunzima bawo bufike kwi-8 gram. Ekupheleni kweveki yesi-7 phakathi kwesibindi kunye ne-placenta, kwenziwa umjikelezo wegazi, oko kukuthi, igazi lomama nomntwana lixhunyiwe. Oku kuyimfuneko ukuze umntwana angadla aze aphefumule. I-barrier ye-utero-placental ikwasekwa kwakhona, ekhusela izinto ezinobungozi kunye nezixhobo ezinobungozi ezinobungozi zokufikelela umntwana.
Uhlalutyo lweHCG ngeveki 7
Uhlalutyo lwenqanaba le-chorionic gonadotropin (hCG) kwi-iveti yesithandathu ye-obstetric ivumela ukuba kuqinisekiswe ukuba umntwana ukhula kakuhle. Kwiimveki eziyi-6-7 zokukhulelwa, iqondo le hormone lingahluka ukusuka kuma-2560 ukuya kuma-82,300 mIU / ml. Kwiiveki ezi-7-8 ze-pregnancy obstetric, i-hCG kufuneka ibe phakathi kwama-23,100 kunye ne-151,000 mIU / mL. Lo mdahluko phakathi komyinge ophezulu nangaphantsi kwithuba ngalinye ngenxa yokuba ixesha lokuchumisa kweqanda kunye nokunamathiselwe kwimbumba yesisu liyakwazi ukuhluka. Kufuneka kukhunjulwe ukuba imveliso yeHCG iqala ngokuchanekileyo ukususela ngexesha lokumiswa.
7 Iveki yokukhulelwa ezinqamlekileyo: ukuvakalelwa
Iveki yesithintelo sokukhulelwa kwesi-7 iya kukhunjulwa ngumama ozayo ngokufika kwe-toxicosis, ukulala, ukuguquka. Zonke izitho kunye neenkqubo ziqala ukwakhiwa kwakhona, zinokukhathazeka ngama-headaches rhoqo, ukuxhalaba okanye, ngokuchaseneyo, iimitha zengqondo zenzeka.
Ixesha lesithintelo seeveki ezi-7 lixesha lokufumana uvavanyo lokuqala lwe-ultrasound, apho i-heartbeat yengane inokumiselwa khona. Unokunika kwakhona i-gynecologist-ezimiselweyo iimvavanyo zokubhalisa ukukhulelwa.