Tus cev nqaij daim tawv yog ib tug quav ntawm qhov chaw mos qhov quav nrog qee qhov. Hymen npog lub qhov chaw mos thiab ua haujlwm raws li hom tshuaj ntsuam ntawm sab hauv thiab sab nraud plab hnyuv siab raum. Nws nyob ntawm ib nrug ntawm 2-3 cm ntawm lub khwb minora.
Dab tsi yog lub paj hlwb?
Lub cev ntawm lub paj hlwb ntawm txhua tus poj niam yog qhov tshwj xeeb. Nyob rau hauv rooj plaub no, lub duab, tsos, thickness ntawm mucosa thiab cov ntshav mov yog heev tus kheej. Cov kws kho mob hu txog 25-30 ntau yam ntawm hymen.
Cov txivneej no tuaj yeem muaj los ntawm ib qho rau ntau qhov ntawm ntau yam duab thiab ntau thiab tsawg. Ntawm cov feem ntau yog lub nplhaib-puab, cloisonne thiab latticed.
Ntxiv rau qhov no, peb paub zoo li hom kab mob hauv lub cev thaum lub caij nplooj ntoos zeeg, cov fusion, cov pob txha, khawb pob ntseg, txaj, forked, tubular, labial, bicontinuous, unperforated, thiab lwm yam. Daim duab qhia txog qee yam ntawm cov tsiaj no.
Nws yog ib qho zoo kom nco tau tias nyob hauv qee tus poj niam lub cev tsis muaj yig vim tias nws qhov kev sib tw thawj zaug tom qab yug me nyuam yug thawj zaug. Thaum ua ntej yug menyuam, thaum muaj kev sib deev, tus spittle stretched, hos tsis tearing.
Yog hais tias tus kab mob hauv hymen nyob rau hauv daim ntawv ntawm ib lub vos nqaim uas nyob ib ncig ntawm sab qaum ntawm lub paum - nws tus tswv yuav tsis hnov mob tshwj xeeb.
Tsis nco ntsoov nrog defloration - kev puas tsuaj ntawm tus hymen, muaj ntshav tawm. Qhov no yog vim lub peculiarities ntawm cov ntshav ntawm txhua tus poj niam, qee qhov, ntshav tsuas ua tsis tau.
Tus hymen tau muaj ntau hom, tab sis thaum lub sij hawm defloration ntau nyob ntawm lub elasticity ntawm mucous membrane nws tus kheej. Yog li, qhov loj tshaj elasticity ntawm tus hymen yog cai nyob rau hauv cov ntxhais 17-21 xyoo. Tias yog vim li cas thiaj ua teeb meem hauv lub hnub nyoog no yooj yim heev. Xyoo, nws cov elasticity txo, thiab ntawm 30 xyoo yog twb tau 20% ntawm yav dhau los tej zaum.
Lub cev tseem ceeb ntawm lub cev ntawm lub cev mus rau hnub no yuav ua rau kom muaj kev cuam tshuam. Qee cov kws tshawb fawb ntseeg tau hais tias qhov no yog ib qho kev mob hauv vestigial, muab tau los ntawm cov neeg nyob deb dhau los. Thaum lwm pab pawg neeg tshawb xyuas pom tias nws ua tiav ib qho kev tiv thaiv, tiv thaiv ntau yam kab mob.