I-trimester yokuqala yokukhulelwa ithathwa njengexesha eliyingozi kakhulu apho kukho umngcipheko wokukhulelwa komzimba. Ngoko ke, ukusondela kwi- trimester yesithathu , mhlawumbi umntwana uza kuzalelwa. Ukuqala ngomhla wama-50 wobomi bombungu, ngokwemiqathango yonyango sele sele ibizwa ngokuba ngumntwana.
I-Fetus ngeveki 9 yokukhulelwa
Esinye seziganeko ezibalulekileyo kulo mhla ngowokuqala ukuhamba okuzimeleyo komntwana ongakazalwa. Usana luqala ukutshintsha kancane kancane isikhundla somzimba, izandla kunye neenyawo. Ezi ntshukumo zilula ukuzibona ngoncedo lwe-ultrasound, kodwa akunakwenzeka ukuba uzive, ekubeni umntwana usemncinane.
Ubungakanani bomntwana obushushu be-coccyx-parietal kwiveki 9 malunga ne-22-30 mm. Ngokwesisindo, umntwana usufikelela kuma-gram ayi-2-3. Umntwana ukhula ngokukhawuleza. Izitho zakhe zangaphakathi ziyaqhubeka zakha. Amehlo omntwana sele ehlanganiswe nefilimu. Imilenze kunye neengalo zikhula, imilenze ikhula ngokukhawuleza. Iminwe yaba yinto ende kwaye iyancipha ngakumbi kwiindawo apho iifayili kufuneka zifake. Amanxu e-Ankle, amaqhosha namadolo sele sele anqunywe.
Ngeveki 9, umntwana uphethe iimpawu zesondo. Ngaloo ndlela, amantombazana aqala ukuphuhlisa ama-ovari, kwaye abafana bayenza imizimba yamathambo, ahlala esecaleni. Nangona kunjalo, ubukho beempawu zesondo abukwazi kubonwa nangona uncedo lwe-ultrasound. Kwakhona kule nkqubo i-thyroid gland iqala ukusebenza, i-adrenals iyakhula.
Intloko yomntwana ozayo iya kujwayelana nathi kwifomu. Intamo sele iqalile ukuvela. Kwixesha leiveki ezili-9 liyaqhubeka nokuphuhliswa kwengqondo yengqondo. I-hemispheres sele ivele yenziwe, ngoku i-cerebellum yenziwe, ejongene nokulungelelanisa ukuhamba kunye ne-pituitary gland. Inkqubo ye-nervous central iqhubeka: i-nerve, ne-craneal kunye ne-intervertebral nerve nodes zenziwa.
Ukuphuhliswa kwe-Fetal ngeveki 9 yokukhulelwa
Ukuphuhliswa kwe-fetus kwiveki ye-9 yokukhulelwa kuphawulwe ngokuqala kwenkqubo yokuhoxiswa kwemveliso ebalulekileyo yomsebenzi. Umntwana uqala ukuvuthwa, ngelixa umchamo uphulukiswa kwi-placenta emzimbeni womama. Usana luba ne-lymphocytes yokuqala kunye ne-lymph nodes.
I-fetus kwiiveki ezingama-9-10 zesigxina ifana nomntu, nokuba yincinci kakhulu. Intambo yesibindi iyaba yinde kwaye umntwana usenokuhamba ngokukhululekile. Ukusuka ebuchosheni obuncinane bomntwana, umzimba womama ufumana iimpawu ezingabonakalisa ekutshintsheni okukhethwa kwintetho. Oku, mhlawumbi, kunokuthathwa njengento yokuqala yokunxibelelana phakathi komama nomntwana.