Ndeipi danho rinosanganisira spermatogenesis?
Inogamuchirwa kusiyanisa 4 nhanho huru dze spermatogenesis:
- Kubereka.
- Kukura.
- Kukura.
- Maitiro.
Chimwe nechimwe chazvo chine zvinyorwa zvayo uye zvine zvimwe zvinoreva zvisikwa. Kutanga, inofanira kunzi kuti testis pachayo inosanganisira nhamba yakawanda ye tubules. Muchiitiko ichi, rusvingo rweumwe neumwe wavo ane zvikamu zvakasiyana-siyana zvemasero, izvo zvinomiririra zvikamu zvinotevera mukusimudzirwa kwepermatozoa.
Chii chinoitika panhandare yekuberekwa?
Kunze kwemasero e seminiferous tubules inomiririrwa ne spermatogonia. Iwa masero ane chimiro chakakomberedzwa, ane ganda guru rinotsanangurwa zvakajeka uye zvishoma zve cytoplasm.
Nekutanga kwekuyaruka, kupatsana kwemasero aya kunotanga nematosis. Somugumisiro weizvi, nhamba ye spermatogonia mu testes yakawanda zvikuru. Nguva iyo kuparadzaniswa kwakasimba kwepermatogonia kunowanikwa chaizvoizvo iyo danho rekuberekwa.
Ndeipi danho rekukura mu spermatogenesis?
Chikamu che spermatogonia mushure mokunge shanho yekutanga inofamba kuenda kunzvimbo yekukura, iyo inotaridzika inowanikwa zvishoma nezvishoma nechiedza chemukati wemukati. Iri munzvimbo ino umo kune kuwedzera kukuru kwehukuru hwekamuri rekubereka, iro rinobudirira nekuwedzera izwi re cytoplasm, pakutanga. Pakupera kwechitubu ichi, spermatocytes yekutanga yakagadzirwa.
Chii chinoitika pachigamba chekutsvaga muviri?
Iyi nguva yekukura kwemajeri masero inoratidzirwa nekuitika kweiviri nekukurumidza kuparadzaniswa. Nokudaro kubva kumarudzi ose evanhu vanokonzera chirwere, 2 spermatocytes yemirairo miviri inoumbwa, uye mushure mechikamu chechipiri kune 4 spermatids ine chimiro chechivharo uye yakakura zvishoma. Muchikamu chechina, kuumbwa kwemasero epabonde- spermatozoa- kunobata nzvimbo . Muchiitiko ichi, sero inowana maitiro akajairika: akarembera, ovheta ne flagella.
Kuti unzwisise zviri nani zvezvikamu zvose zve spermatogenesis, zviri nani kusashandisa tafura, asi urongwa hunotaridzika hunozviratidza hutano hunoitika mune imwe neimwe yavo.
