Qhov Tseem Ceeb - Spermiogenesis vs Spermiation
Spermatogenesis yog ib txoj hauv kev uas cov phev paub tab yog tsim los ntawm cov kab mob hauv cov txiv neej. Cov kab mob muaj nyob rau hauv lub seminiferous tubules ntawm lub testis. Cov txheej txheem pib los ntawm mitotic faib ntawm qia hlwb uas tam sim no nyob ze rau hauv qab daus daim nyias nyias. Cov qia hlwb no hu ua spermatogonial qia hlwb. Tag nrho cov txheej txheem yuav tshwm sim nyob rau hauv ntau theem nrog ntau yam cell divisions. Spermiogenesis thiab spermiation yog xws li subdivisions ntawm spermatogenesis. Spermiogenesis yog txheej txheem uas cov spermatids tau hloov mus rau hauv cov spermatozoa paub tab thaum spermiation yog cov txheej txheem uas cov spermatozoa tawm ntawm Sertoli hlwb mus rau hauv kab noj hniav ntawm seminiferous tubules. Qhov no yog qhov txawv ntawm Spermiogenesis thiab Spermiation.
Spermiogenesis yog dab tsi?
Spermiogenesis txhais tau tias yog txheej txheem kawg ntawm spermatogenesis qhov twg spermatids hloov mus rau hauv cov spermatozoa paub tab. Thaum lub sij hawm no, lub maturation ntawm spermatids tshwm sim. Raws li cov morphology ntawm spermatid, nws yog ib lub voj voog zoo li lub xovtooj ntawm tes uas muaj cov cellular organelles tseem ceeb xws li nucleus, mitochondria, Golgi apparatus thiab centriole rau cell division. Txhua thiab txhua lub organelle uas muaj nyob rau hauv cov spermatid muaj cov txheej txheem maturation. Nyob rau hauv cov ntsiab lus ntawm ib tug raug spermiogenesis txheej txheem, nws yog tsim los ntawm plaub theem loj xws li Golgi theem, cap theem, tus Tsov tus tw tsim theem thiab maturation theem.
Nyob rau theem Golgi, spermatids pib tsim cov polarity. Txog rau theem Golgi, cov spermatids muaj nyob rau hauv cov hlwb radially symmetrical. Nrog rau qhov pib ntawm theem no, lub taub hau cheeb tsam ntawm cov phev raug tsim. Lub Golgi complex tsim cov enzymes tsim nyog rau kev tsim cov acrosome uas tam sim no nyob rau hauv lub taub ntawm cov phev taub hau. Cov acrosome muaj cov enzymes digestive uas siv los nkag rau poj niam zes qe menyuam. Ntawm qhov kawg, lub caj dab cheeb tsam ntawm cov phev yuav raug tsim, thiab nws yuav muaj ntau tus lej ntawm mitochondria. Thaum lub sij hawm no, condensation ntawm spermatid DNA kuj tshwm sim.
Daim duab 01: Sperm
Thaum lub sijhawm cap, Golgi apparatus ncig lub condensed DNA nyob rau hauv lub nucleus thiab tsim cov acrosomal cap. Tawm ntawm ob lub centrioles tam sim no nyob rau hauv nruab nrab cheeb tsam ntawm cov spermatid, ib lub centriole pib elongation thiab ua rau tsim ntawm tus Tsov tus tw ntawm cov phev. Qhov no yog lub Tail tsim theem. Thaum lub sij hawm kawg, uas yog lub sij hawm maturation, ntau tshaj cytoplasm ntawm spermatid yuav phagocytosed. Qhov no yog ua los ntawm ib puag ncig Sertoli hlwb uas muaj nyob rau hauv lub testis.
Spermiation yog dab tsi?
Spermiation yog ib txheej txheem los ntawm cov spermatids paub tab tshwm sim los ntawm spermiogenesis raug tso tawm los ntawm Sertoli hlwb ntawm lub testis. Cov spermatids paub tab no tso rau hauv lub lumen ntawm cov tubules seminiferous. Qhov no yog txheej txheem tseem ceeb uas nws txiav txim siab cov phev uas nkag mus rau hauv lub epididymis thiab cov ejaculation cov phev. Spermiation yog ib tug complex txheej txheem. Raws li kev noj qab haus huv, cov txheej txheem no siv sijhawm ob peb hnub. Thaum lub sij hawm Spermiation, cov spermatids paub tab yog pib npaj raws li luminal ntug ntawm seminiferous tubules. Cov txheej txheem ua tiav thaum cov spermatids tso rau hauv tubule lumen. Qhov tshwm sim mature spermatid tsis muaj motility. Cov phev uas tsis yog-motile no raug thauj mus rau epididymis nrog rau cov kua hauv lub cev uas zais los ntawm Sertoli hlwb.
Txoj kev txav tau yooj yim los ntawm kev cog lus perist altic. Nyob rau hauv lub epididymis, lub mature spermatid nce motility. Qhov ntxiv cytoplasm ntawm cov spermatids uas paub tias residual lub cev yog zom los ntawm phagocytosis qhia los ntawm Sertoli hlwb nws tus kheej. Txawm hais tias lub luag haujlwm tseem ceeb ntawm cov txheej txheem spermiogenesis yog kev tso tawm ntawm cov spermatids paub tab, kev hloov kho ntawm cov spermatid ntau dhau los ua rau muaj cov spermatozoan streamlined. Cov txheej txheem no tam sim no suav tias yog lub hom phiaj muaj peev xwm nyob rau hauv cov ntsiab lus ntawm txiv neej cov tshuaj tiv thaiv kab mob vim tias nws tuaj yeem tiv thaiv kev tso cov phev mus rau lub lumen ntawm lub seminiferous tubule thiab tom qab ntawd mus rau epididymis.
Dab tsi yog qhov zoo sib xws ntawm Spermiogenesis thiab Spermiation?
- Ob leeg Spermiogenesis thiab Spermiation koom nrog hauv kev tsim cov phev.
- Ob leeg Spermiogenesis thiab Spermiation txheej txheem yog ob qho tseem ceeb ntawm cov spermatogenesis.
Qhov txawv ntawm Spermiogenesis thiab Spermiation yog dab tsi?
Spermiogenesis vs Spermiation |
|
| Spermiogenesis yog txheej txheem los ntawm cov spermatids hloov mus rau hauv cov spermatozoa paub tab. | Spermiation yog cov txheej txheem uas cov spermatozoa tso tawm los ntawm Sertoli hlwb mus rau hauv kab noj hniav ntawm seminiferous tubules. |
Summary – Spermiogenesis vs Spermiation
Spermiogenesis txhais tau tias yog txheej txheem kawg ntawm spermatogenesis qhov twg spermatids hloov mus rau hauv cov spermatozoa paub tab. Thaum lub sij hawm no, lub maturation ntawm spermatids tshwm sim. Nyob rau hauv cov ntsiab lus ntawm ib tug raug spermiogenesis txheej txheem, nws yog tsim los ntawm plaub theem loj xws li Golgi theem, cap theem, tus Tsov tus tw tsim theem thiab maturation theem. Nyob rau hauv cov ntsiab lus ntawm spermiation, nws yog ib tug txheej txheem los ntawm qhov uas mature spermatids tshwm sim los ntawm spermiogenesis raug tso tawm los ntawm Sertoli hlwb ntawm lub testis. Txawm hais tias lub luag haujlwm tseem ceeb ntawm cov txheej txheem spermiogenesis yog qhov kev tso tawm ntawm cov spermatids paub tab, kev hloov kho ntau ntawm cov spermatid yuav siv qhov chaw uas ua rau cov spermatozoan streamlined.
