Dab tsi yog lub npe ntawm fertilized ovum?
Dab tsi yog lub npe ntawm fertilized ovum?

Video: Dab tsi yog lub npe ntawm fertilized ovum?

Video: Dab tsi yog lub npe ntawm fertilized ovum?
Video: Yog Hmoov Dab Tsi Duet - ET Yaj & Toumay Yaj 2024, Cuaj hlis
Anonim

A fertilized qe yog hu ua ib zygot. Tshwj xeeb, zygote yog tib lub cell tsim thaum cov phev thiab qe ua ke. Thaum nws tau tsim, zygote

Ib yam nkaus, tib neeg nug, dab tsi hu ua fertilization?

Fertilization (Askiv Askiv sau ntawv: fertilization ) yog dab tsi tshwm sim thaum poj niam lub qe (lossis "qe") koom ua ke nrog tus txiv neej cov phev thiab lawv tsim zygote. Fertilization yog thiab hu ua kev xeeb tub.

Tom qab ntawd, lo lus nug yog, yuav ua li cas lub qe fertilized hauv tib neeg? Tib neeg fertilization yog kev koom ua ke ntawm a tib neeg lub qe thiab phev, feem ntau tshwm sim hauv ampulla ntawm txoj hlab ntaws. Cov phev ntshav, tom qab ntawd fuses nrog vaj ntshav membrane, lub phev taub hau sib txuas los ntawm nws cov flagellum thiab qe taug kev hauv lub raj Fallopian kom mus txog rau lub tsev menyuam.

Tom qab ntawd, lo lus nug yog, dab tsi yog fertilized ovum?

1. fertilized ovum - (noob caj noob ces) lub diploid cell ua los ntawm kev koom ua ke ntawm haploid spermatozoon thiab ovum (suav nrog cov kab mob uas tsim los ntawm lub xovtooj ntawd) zygote. kab mob, yog - yog ib qho khoom muaj sia uas muaj (lossis tuaj yeem txhim kho) lub peev xwm los ua lossis ua haujlwm ntawm nws tus kheej.

Plaub theem ntawm fertilization yog dab tsi?

Cov theem ntawm fertilization tuaj yeem faib ua plaub txheej txheem: 1) kev npaj phev, 2) phev- qe paub thiab khi, 3) phev- qe fusion thiab 4) fusion ntawm phev thiab qe pronuclei thiab ua kom lub zygote ua.

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