Sake bugun Rights: kamar yadda ya faru?

Kamar dukan sauran halittu, mutane bukatar ninka domin zama a matsayin mai raba jinsunan. Zai ze, kome wuya a cikin wannan tsari, amma a gaskiya shi ne ɗan daban-daban. Gaskiyar cewa ganewa za a iya za'ayi, ba a kowace rana, da kuma m ci gaban da yaro a cikin mahaifa ne mai matukar hadaddun da Multi-mataki.

conceiving

A gaskiya ma, hadi kawai a kan wasu kwanaki na iya faruwa da maniyyi. A kowane hailar sake zagayowar, da wata mace yana da kawai 1-2 dace kwanan wata. Ganin cewa a cikin maniyyi, kafin daga karshe ya kai ampullary ɓangare na fallopian shambura, inda hadi faruwa da tsari, dole ne je ta wajen rikitarwa hanya cewa ya yi alkawarin Mafiya yawa na mutuwa, dama a ganewa ba irin wannan high.

Bayan hadi zai har yanzu a za'ayi, da zygote kafa hankali directed zuwa cikin mahaifa. A lokacin wannan tafiya can ne, karɓa mai karuwa a zygote. Game da 10 hours tayi shiga cikin mahaifa, inda aka saka a cikin bango. Bayan nan, da tayi tsiro da kuma tasowa a hankali. Ya kamata a lura cewa da farko lokaci na ci gaba da yaro a cikin mahaifa daukawa a babban hadarin da shi. Saboda haka mutum haifuwa - quite mai rikitarwa multistep tsari.

Haihuwa da kuma su hadari

Daya daga cikin karin bayanai ne da bayyanar da yaro haihuwa. Ya yi alkawari da babban yawan hatsarori duka biyu uwa da yaro. Sa'a, da ci gaban zamani magani damar kusan 100% na lokaci zuwa ajiye uwar ta rayuwa ko a cikin mafi wuya yanayi. Amma ga yaro, sai ya ke duk wani bit more rikitarwa, amma yanzu akwai mutane da yawa daban-daban fasaha kayayyakin aiki, samuwa don taimaka a adana rayuwa, ko mafi ƙanƙanta yaro. Godiya ga wannan haifuwa da kuma cigaban dan Adam ya zama sauki tsari.

danginsu hatsari ya ta'allaka da yiwuwar nama lalacewa da kuma uwar yaron, kazalika a hypoxia (rashin oxygen). Domin kauce wa wannan, gynecologists amfani da dabaru na musamman, a taimaka wa yaro ya wuce ta cikin haihuwa canal. A matsanancin wani sashe cesarean aka yi.

demography matsaloli

Ga bayani a kan yadda yaro tasowa a cikin mahaifa, kuma an haife, za a iya gaya ilmin halitta. mutum haifuwa fadin jinsunan ko mai raba yawan nazarin demography. Yana ba ka damar gano kunno kai trends a yawan size da kuma jima'i da shekaru abun da ke ciki. Wannan ba ka damar daukar matakan da suka dace.

Yau, a da yawa da suka ci gaba kasashe, akwai wani sauka a hankali karu a yawan jama'a. Wannan shi ne saboda gaskiyar cewa mutum haifuwa ne subordinated zuwa babban adadin dokoki da kuma hane-hane cewa ya kafa domin kanta kowane rai guda. Mutane a raya ƙasashe fi son na farko warware duk al'amurran da suka shafi game da aiki, kuma kawai sai tunani game da yara. A sakamakon haka, mutum haifuwa faruwa yafi tsakanin zamanai na 30 zuwa shekaru 35. Bugu da kari, yawan mutanen wadannan kasashe fi son "rayuwa ga kansu" kuma suna daya kawai yaro.

Saboda haka, da zamani haifuwa na jinsunan mutane yana da halaye. Wannan abin da yayi kunno kai a wannan yanki a nan gaba, za ta nuna ne kawai lokaci.