txheem
Fertilization, ib kauj ruam ntawm kauj ruam
Fertilization, kev zoo siab ua ke ntawm qhov xwm txheej?
Yam yuavtsum tau kawm uantej rau fertilization: ib tug phev yuav tsum tau raws li lub qe. Ib qho tseem ceeb, tsis muaj dab tsi nyuaj heev. Tab sis rau qhov no ua hauj lwm thiab kom muaj fertilization, peb yuav tsum tau muaj kev sib deev nyob rau hauv 24 mus rau 48 teev ntawm ovulation.
Paub tias lub txoj sia nyob ntawm cov phev yog 72 teev Nyob rau nruab nrab thiab lub qe tsuas yog tseem fertile rau 12 mus rau 24 teev, qhov tshwm sim ntawm xeeb tub nyob rau hauv 28-hnub coj khaub ncaws voj voog yog li ntawd tsawg heev. Tshwj xeeb tshaj yog vim muaj lwm yam tsis zoo yuav tsum tau coj mus rau hauv tus account, xws li qhov zoo ntawm lub zes qe menyuam thiab phev, muaj teeb meem kev noj qab haus huv… Tsis tas li ntawd, nws yog ib qho tseem ceeb uas peb yuav tsum sim ntau zaus ua ntej ua tiav fertilization thiab yug me nyuam, 9 lub hlis tom qab, ib kawg!
Li no qhov kev txaus siab rau kev paub txog koj cov kev coj khaub ncaws zoo (tshwj xeeb yog tias nws tsis zoo). Txhawm rau kom tsis txhob tsis meej pem hauv cov ntaub ntawv, peb siv cov cuab yeej yooj yim los nrhiav nws hnub ovulation.
Hauv video: Lub qe ntshiab yog qhov tsawg, tab sis nws muaj nyob
Ntawm txoj kev mus rau fertilization
Thaum sib deev, lub qhov chaw mos yuav sau ntau lab tus phev. Ua los ntawm lub taub hau thiab flagellum, lawv yuav sim kom ciaj sia thiab ua rau lawv txoj kev mus rau lub qe kom fertilize nws. Txawm li cas los xij, txoj kev yog ntev thiab winding mus txog rau lub tsev menyuam cov hlab ntsha uas qhov no fertilization yuav tshwm sim.
Los ntawm lub ncauj tsev menyuam, 50% ntawm cov phev yog li tshem tawm, tshwj xeeb tshaj yog cov uas muaj morphological anomalies (tsis muaj lub taub hau, flagellum, tsis ceev txaus ...). Lawv yeej tsis muaj peev xwm fertilize lub qe. Lwm tus mus txuas ntxiv mus. NW nyuam qhuav 1% ntawm cov phev los ntawm ejaculation ua rau nws los ntawm lub tsev menyuam thiab lub tsev menyuam.
Kev sib tw tawm tsam lub sijhawm txuas ntxiv mus! Thaum lub qe tau raug ntiab tawm ntawm zes qe menyuam thiab swb mus rau hauv ib qho ntawm cov hlab ntsha fallopian, cov spermatozoa - tam sim no nyob rau hauv lub tsev menyuam - yuav mus rau lub raj uas lub qe " nkaum". Ob peb pua tus phev uas tseem tshuav sim kom ze rau lawv lub hom phiaj. Txawm hais tias ob peb centimeters uas tseem yuav tsum tau them, nws sawv cev rau kev siv zog loj rau lawv vim lawv nyob nruab nrab tsuas yog 0,005 centimeters.
Lub rooj sib tham ntawm cov phev thiab qe
Kwv yees li 2/3 ntawm lub raj mis, lub phev koom lub qe. Tsuas yog ib tus yuav yog tus muaj hmoo: tus uas yuav ua tiav kev hla lub hnab ntawv tiv thaiv lub zes qe menyuam thiab nkag mus rau nws. Qhov no yog fertilization! Los ntawm kev nkag mus rau lub zes qe menyuam, cov phev "yeej" poob nws cov flagellum thiab tom qab ntawd teeb tsa ib qho kev cuam tshuam tsis zoo nyob ib puag ncig nws txhawm rau tiv thaiv lwm cov phev los ntawm kev koom nrog nws. Txoj kev taug txuj kev nyuaj thiab zoo kawg nkaus ntawm lub neej tuaj yeem pib… Cov kauj ruam tom ntej: implantation!