Kamar yadda ka sani, duk lokacin gestation ya raba zuwa ga abin da ake kira trimesters - wani lokaci lokaci, tsawon lokaci shine daidai watanni 3. Ka yi la'akari da wannan zangon daki-daki kuma ka fahimta: 1 na uku na ciki - tsawon makonni ne, da kuma wace manyan canje-canje faruwa a ciki.
Yaya tsawon lokacin farko ne na farkon gestation?
Kamar yadda aka ambata a sama, 1 watanni uku - 3 watanni. Idan kuna ƙoƙarin fassara shi a cikin makonni kuma ku gano: tsawon lokacin farko na shekaru biyu na ciki, sa'an nan kuma ya juya cewa wannan a cikin makonni 12 na obstetric.
Menene ya faru da tayin a wannan mataki?
A farkon lokacin ciki, tayin nan gaba shine ƙananan ƙwayoyin sel waɗanda suke rarrabewa akai-akai. A mataki na gastrulation, gabatarwar kwai cikin fetal cikin endometrium na uterine ya faru. Yana da daga wannan lokaci, a gaskiya, farkon fara ciki.
Bayan tsakiyar mako na biyu, tsarin jin daɗi na jariri na gaba zai fara, kuma yana kusa da 4, an kafa cavities a cikin ido, hannunsa da kafafu na yaron da ba a haifa ya fara bambanta ba. A ƙarshen watanni biyu na ciki, amfrayo har yanzu kadan, kawai 4 mm.
A cikin watanni biyu na gestation, an lura da ci gaban kwakwalwa. A wannan yanayin, shugaban amfrayo kanta yafi girma kuma girmansa ya wuce 1/3 na tsawon ɓangaren. Ɗan jaririn yana kama da babban ƙugiya.
A wannan mataki na cigaba, zuciyar ta rigaya tana yin kwangila. A wurin da kunnuwa da idanu za su kasance, an kafa wasu nau'i-nau'i, wanda shine ginshiƙan waɗannan kwayoyin. Zuwa ƙarshen watanni 2 gabobin tsarin haifuwa na amfrayo fara farawa. Duk da haka, har yanzu ba zai yiwu a ƙayyade jinsi ba. Girman karamin kwayoyin a wannan lokaci bai wuce 2.5 cm ba.
Gestation na watanni uku yana nuna alamar wasu fuskoki na fuska. A wannan yanayin, goge da ƙafa sun riga sun bambanta. A ƙarshe, a wannan lokaci, an kafa gabobin da ke kafa gastrointestinal tract, musamman hanta, ciki, hanji. Sakamakon halittar motsin rai yana faruwa.
Zuciyar ta riga ta sha hudu, cibiyar sadarwa na jini tana girma. Akwai canje-canje a cikin kwakwalwa: raƙuman hanyoyi da shawarwari an kafa. Akwai sauyawa na maye gurbin kayan ƙwallon ƙaƙa da kasusuwa, wanda ke taimakawa wajen motsa jiki na dan jariri. Wasu mata, wadanda suke da halayyar mutane, suna iya nuna alamun farko a ƙarshen farkon shekaru uku .