Yaya shekarun haihuwa na obstetricians?
Saboda gaskiyar cewa a mafi yawancin lokuta ma'anar ranar ɗaukar hoto yana da wuyar gaske, lokacin farawa yana fara kirgawa daga ranar farko ta karshe, aka lura da duk wata fitarwa a kowane wata.
Bugu da kari, don saukaka lissafi an ɗauka cewa watan yana daidai da makonni 4. Saboda haka, don lissafta tsawon watanni da yawa, zubar da makonni 12, mahaifiyar da zata jira ya isa ya rabu da 4. Saboda haka, ya bayyana cewa makonni 12 yana cikin watanni 3 na cikakke.
Menene ya faru da tayin a wannan lokaci?
Ci gaban dan jariri a yanzu shine 6-7 cm, kuma jikin jikinsa ya kai 9-13 g.
Zuciyar ya rigaya aiki kuma a cikin minti 1 yana sanya har zuwa 160 cuts. Kwancensa yana jin murya yayin yin duban dan tayi.
A wannan lokaci, fashewa na glandan thymus ya faru, wanda ke da alhakin kira na lymphocytes da kuma kafa tsarin kulawa da kansa. A lokaci guda, glandan gwanin fara fara satar jima'i wanda ke da tasiri akan tasirin rayuwa, girma. Leukocytes fara bayyana a cikin jini circulating.
Hanta na tayin yana samar da bile, wanda shine wajibi ne don tsarin narkewa. A wannan yanayin, ganuwar ƙananan hanji fara farawa takunkumi na ƙwayoyin ƙwayar tsoka - ƙirar fata.
A cikin na'ura mai kwakwalwa, an kafa wani abu. A matakai na yatsunsu sun bayyana alamu na faranti. Jiki kanta an rufe shi da gashi daga waje.
Yara ya fara motsawa a cikin ruwa mai amniotic. Ana ɗaukaka su a kowace rana, kuma ƙarar ba ta fi 50 ml ba.