Cov txiv neej cov kab mob ua rau muaj kev sib faib meiotic uas thaum kawg tsim cov phev, thaum Sertoli hlwb muab khoom noj rau cov kab mob. Li no, thaum sib txawv cov spermatids tseem cuam tshuam nrog Sertoli cell.
spermatids txawv li cas?
Nrog rau qhov pib ntawm meiosis, cov kab mob hu ua spermatocytes, thiab tom qab mus rau meiosis, cov hlwb haploid hu ua spermatids. … Lub sijhawm 13 hnub tom ntej no, cov spermatids puag ncig sib txawv rau hauv elongating spermatids uas cov phev tails tsim thiab cov nucleus condenses.
Dab tsi yog qhov txawv ntawm spermatogenesis?
Sperm differentiation encompasses ib ntu ntawm kev hloov morphological uas tshwm sim nyob rau hauv seminiferous epithelium. Nyob rau hauv cov txheej txheem no, haploid round spermatids tau txais kev hloov pauv ntawm cov qauv thiab kev ua haujlwm, ua rau cov phev polarized heev.
Yuav ua li cas rau spermatids thaum lub sij hawm spermatogenesis?
Nyob rau hauv cov ntsiab lus, spermiogenesis cuam tshuam nrog cov txheej xwm uas ua rau cov spermatozoa (sperm cells). Yog li, los ntawm ib puag ncig configuration, cov spermatids ua streamlined. Tsis muaj kev faib cell tshwm sim nyob rau theem no lawm. Tiam sis, cov spermatids hloov mus ua spermatozoa.
Puas yog txheej txheem ntawm kev sib txawv ntawm tes los ntawm cov spermatids ua phev?
Spermatogenesis yog cov txheej txheem ntawm kev tsim cov phev cell. Hloov pauv cov phev tsis paub qab hau tau ua tiav mitotic thiab meiotic divisions (spermatocytogenesis) thiab hloov pauv hloov pauv (spermiogenesis) los tsim cov spermatozoa.
