Vim li cas qhov tshwm sim no tshwm sim?
Nws yuav tsum tau sau tseg tam sim ntawd hais tias qhov no tshwm sim ntawm qhov tshwm sim yog qhov qub tiag tiag; nyob rau hauv tsis muaj cov ntaub ntawv nws tsis hais txog qhov tsis ncaj ncees lawm tus qauv ntawm reproductive plab hnyuv siab raum ntawm ib tug poj niam. Tsis tas li, yog tias cov phev poj niam tawm hauv qhov chaw mos tom qab sib deev, qhov no tsis txhais hais tias spermatozoa tsis nkag mus rau hauv lub uterine kab noj hniav.
Yog tias peb tham txog qhov tshwm sim ntawm no tshwm sim, nws yuav tsum tau ua ntej ntawm tag nrho cov tau sau tseg tias qhov no feem ntau pom nyob rau hauv cov poj niam uas muaj ib tug me ntsis flattened posterior rau ntawm qhov chaw mos. Hauv qhov no, qhov kev rho tawm ntawm phev los ntawm poj niam qhov chaw mos plab hnyuv siab raum tshwm sim los ntawm qhov kev txiav txim ntawm lub ntiajteb txawj nqus rau nws. Nws yog qhov tseeb uas ua hauj lwm raws li kev piav qhia txog vim li cas cov phev emanate los ntawm qhov chaw mos yuav luag tam sim tom qab sib deev.
Tsis tas li ntawd, qee tus poj niam nco tias lawv cov phev los ntawm qhov chaw mos ntawm qhov chaw mos thaum lub sijhawm tso zis, uas tshwm sim tom qab kev sib deev tom qab. Qhov no tshwm sim tsis tuaj yeem suav tias yog ua txhaum. Tom qab tag nrho, thaum koj mus rau hauv plob tas, cov nqaij ntshiv ntawm lub me pelvis yog qhib kom ua, uas, vim muaj qhov siab ntawm qhov chaw mos, ua rau kom tso tawm ntawm ejaculate tawm mus.
Tus poj niam yuav tsum ua li cas rau hauv qhov xwm txheej no?
Nws yuav tsum raug sau tseg hais tias los ntawm kev kho mob kev pom, xws li qhov tshwm sim tsis cuam tshuam rau cov txheej txheem ntawm txhua lub sijhawm. Nyob rau hauv txhua rooj plaub, ib feem ntawm lub seminal kua, nrog rau ntau dua spermatozoa, penetrates lub uterine caj dab, thiab tom qab ntawd ces mus rau hauv kab noj hniav ntawm qhov kev ua me nyuam. Rau fertilization ntawm ib tug paub tab qe, cia 3-5 ml ntawm ejaculate yog txaus.
Yog li, nws yuav tsum tau hais tias ib tug poj niam yuav tsum tsis txhob xav txog tias cov phev los ntawm qhov chaw mos yuav ntws tawm tom qab kev sib deev, vim tias qhov tshwm sim no yog qhov tseeb tiag thiab tsis muaj kev cuam tshuam txog txoj kev ua kom cov noob.