Kedu ihe jikọrọ nke oogenesis na spermatogenesis?
Akpa, ekwesiri iburu n'uche na usoro data abuo nwere otu onodu. Tụlee ha ka ha wee:
- Ihe mmepụta ihe. N'oge a, mkpụrụ ndụ ndị bụ isi nke spermatogonia na oogonia na-amalite ịkpa ókè site na mitosis. Ekwesiri ighota ihe omuma a: n'ime mmadu, mmeputakwa nke umu nwoke na nwanyi na-eme na ndu (site na mgbe ntozu ntozu ), na nwanyi ndi ozo a na-enweta na onodu nke mmeju nwa (2-5 months of development of the fetus).
- Ngalaba nke uto. Enwere mmụba siri ike na mkpụrụ ndụ nwoke na nwanyị. N'ihi ya, ha na - abanye na spermatocytes na oocytes nke 1st order. N'okwu a, oocytes buru ibu n'ihi na ha na-akwakọba ihe ndị ọzọ dị mkpa maka mmepe nke embrayo mgbe njikọta spam nke oocyte.
- Nkeji nke maturation. Ihe e dere site na meiosis 1 na meiosis 2. Site na nke mbụ, spermatocytes na oocytes na-emepụta iwu 2, na mgbe ụmụ nke abụọ tozuru okè na spermatids. Ọ dị mkpa ikwu na otu spermatocyte nke 1 n'usoro mgbe nkewa kewasịrị 4 spermatids, na site na oocyte nke 1 nyere naanị otu akwa na 3 pola corpuscles e guzobere.
Kedu ihe dị iche na oogenesis na spermatogenesis?
N'ịkọwapụta ọdịdị nke ọgwụgenesis na spermatogenesis, ọ dị mkpa ikwu na ọdịiche dị ukwuu nke usoro ndị a bụ enweghị nke ovogenesis nke 4 nke nhazi. Ọ bụ ọnụọgụ nke na-agbanwe mgbanwe na spermatozoa. Ntọala nke mkpụrụ ndụ nwoke na nwanyị na-amalite nanị site na mmalite nke oge ntorobịa na ụmụ nwoke.
Iwu niile dị n'elu nke spermatogenesis na oogenesis nwere ihe ha pụtara. Ya mere, dịka ọmụmaatụ, akụkụ nke na-adịghị ahụkebe nke mkpụrụ ndụ nwoke na nwanyị n'oge omegenesis na-akwalite nhazi otu akwa akwa na-enye nri.
Ozokwa, eziokwu nke spermatozoa na-etolite ọtụtụ ihe kpatara ya bụ na mgbe a na-akwa akwa ahụ, ọ bụ nanị nwoke 1 nwoke na nwanyị nwere mmekọahụ. Ndị ọzọ na-anwụ n'okporo ụzọ nke nwanyi ovum.
Anyị na-enye gị akara ngosi maka nghọta ka mma maka usoro nke spermatogenesis na oogenesis, nke e gosipụtara isi ihe nke ọ bụla n'ime ha.
