Wadanne mataki ya shafi magunguna?
An yarda da shi don gane muhimman matakai 4 na spermatogenesis:
- Sake bugun.
- Girma.
- Maturation.
- Formation.
Kowane ɗayansu yana da kwarewarsa kuma yana da ma'anar ilmin halitta. Da farko, dole ne a ce cewa gwajin kanta kanta ya ƙunshi babban adadin tubules. A wannan yanayin, bango kowane ɗayansu yana da nau'i-nau'i na sel, wanda hakan ya wakilci matakai na gaba a cikin ci gaban spermatozoa.
Menene ya faru a mataki na haifuwa?
Matsayin da ke tattare da kwayoyin halittu na seminularous tubules yana wakiltar spermatogonia. Wadannan kwayoyin suna da nau'i mai nau'i, tare da babban fili ya bayyana tsakiya da ƙananan adadin cytoplasm.
Da farko na balaga, rabuwa mai karfi na waɗannan kwayoyin sun fara ne daga mitosis. A sakamakon haka, adadin spermatogonia a cikin gwaji an karu sosai. Lokacin da rarraba aiki na spermatogonia ya faru ne ainihin mataki na haifuwa.
Menene mataki na girma a cikin kwayar cutar jini?
Wani ɓangare na spermatogonia bayan mataki na farko ya motsa zuwa yankin ci gaban, wanda ke da alaƙa a kusa da lumen na ɗakin fasalife. Yana cikin wannan wuri cewa akwai karuwa mai girma a girman girman kwayar halitta, wadda aka samu ta hanyar kara yawan ƙararrakin cytoplasm, da farko. A karshen wannan mataki, an kafa spermatocytes na farko tsari.
Menene ya faru a mataki na maturation?
Wannan lokaci na ci gaba da kwayar cutar kwayar halitta tana da halin da ke faruwa na hanzari sau biyu. Saboda haka daga kowace spermatocyte na 1 tsari, 2 kafa kwayoyin halitta 2, kuma bayan kashi na biyu akwai 4 spermatids waɗanda suke da siffar daji da ƙaramin ƙarami. A mataki na 4, an samu jinsin jima'i - spermatozoa -takes wuri . A wannan yanayin, tantanin halitta yana samun bayyanar da aka saba da shi: elongated, oval tare da flagella.
Don ƙarin fahimtar dukkanin matakan ciwon kwayar halitta, ya fi kyau amfani da ba tebur ba, amma makirci da ke gani yana nuna yadda ake gudanarwa a kowannensu.
