15 lub lim piam ntawm cev xeeb tub - kev loj hlob ntawm tus me nyuam (los ntawm cov yas dhau mus rau coccyx) - 9,3-10,4 cm Nws cob kom ua pa thaum kos rau hauv cov ntsws thiab thawb lub amniotic kua. Kom muaj peev xwm tuav cov khoom noj uas yuav tsum tau muaj thiab thaum dej tsis huv, lawv raug kho dua 8-10 zaug hauv ib hnub.
Me nyuam me tuaj zuj zus
Thaum xaus ntawm 15 lub lim piam ntawm cev xeeb tub los ntawm kev xav, cov leeg muaj ntev tshaj ob txhais ceg, yog li ntawd lawv tuaj yeem tsiv nrog kev pab cuam ntawm pob qij txha. Los ntawm lub sij hawm no tus me nyuam tab sis ho tsis qhib muag daj, tab sis pom tau tias lub teeb thiab yog hais tias ci rau ntawm lub plab ib lub me me, lub me nyuam yuav tig mus. Tsis tas li ntawd, txawm hais tias koj tsis tas yuav sim ua khoom noj, cov paj ntawm tus nplaig ntawm tus nplaig twb pib.
Lub plab zom thiab cov kab mob hauv lub plawv yeej ua haujlwm. Cia li xav txog 23 liters ntshav "pumped" los ntawm ib lub siab me me txhua hnub.
Kev hloov nyob rau hauv lub neej yav tom ntej niam
Los ntawm kev kawm koj tus kheej, koj yuav pom qhov txawv txav ntawm qhov chaw. Li no lub tsev menyuam yog tam sim no 7-10 cm hauv qab no lub ntaws.
Qee yam uas tshwm sim nrog lub cev, koj yuav tsis pom tseeb, tab sis qhov no yuav tsum tsis txhob txwv koj kom tsis txhob muaj menyuam hauv plab. Piv txwv, lub qhov ntswg tsis tu ncua tuaj yeem piav qhia los ntawm cov kev hloov hormonal thiab qhov tseeb tias cov ntshav ntawm cov hnoos qeev tau nce. Qhov mob no hu ua "rhinitis ntawm cov poj niam cev xeeb tub." Tib yam li no ua rau los ntshav ntawm lub ntswg rau qee cov poj niam cev xeeb tub. Yuav kom paub tseeb dua qhov teeb meem, koj tuaj yeem ua tus txheej txheem amniocentesis thiab qhia cov teeb meem caj ces, yog tias muaj.
Tsis yog ib tug neeg txawv tebchaws rau yav tom ntej niam thiab leej txiv ntawm kev paub txog kev noj qab haus huv ntawm tus menyuam yav tom ntej, thiab kev zoo siab txog cov kev hloov pauv yav dhau los, ob qho tib si ntawm lub hlwb thiab kev paub tseeb, thiab tiag tiag.
Zog ntawm tus menyuam
Thaum nruab nrab ntawm 16 thiab 22 lub lim tiam ntawm cev xeeb tub, tus niam tsev tos siab thaum kawg tau txais txoj hau kev los ntsib kev xyiv fab ntawm thawj kev sib tw ntawm nws tus me nyuam. Cov taw kev no yooj yim rau tus poj niam tawv nqaij zoo dua, thiab cov neeg uas nqa mos ab thawj zaug thiab tsis muaj teeb meem paub qhov taw ntawm thawj zaug. Cov neeg uas tos tus menyuam yaus tuaj yeem ua ntej ua rau cov kab mob no ua rau txoj haujlwm ntawm txoj hnyuv, piv txwv. Thiab tsuas yog tom qab, thaum lub zog ua dlaim phaj, lawv tuaj yeem tau txiav txim siab tsis tau zoo. Txawm li cas los xij, yog hais tias tus me nyuam txhawj xeeb ntev, nws yuav zoo dua yog xav nrog kws kho mob tham.
Muaj peev xwm ntawm kev yug me nyuam rau tus me nyuam nrog Down syndrome.
Txoj kev pheej hmoo ntawm tus me nyuam muaj tus mob Dain's syndrome nce nrog lub hnub nyoog. Yog li, rau cov poj niam uas tsis tau muaj hnub nyoog 30 xyoo - qhov tshwm sim no yog 800, ntawm 40 xyoos - 1 ntawm 100, tom qab ntawd 45 los ntawm 1 rau 32. Feem ntau, nws txiav txim siab tias tus menyuam yuav yug los nrog kev sib txawv thiab muaj kev rho menyuam tawm ntawm thaum ntxov ua sawv. Qee zaum ib tug me nyuam yug los tuag.
Yog tias koj muaj kev zoo siab txog qhov no, nco ntsoov xyuas nrog koj tus kws kho mob. Nrog rau cov txheej txheem amniocentesis (puncture ntawm lub zais zis), Cov mob Down syndrome tuaj yeem kuaj, vim qhov no yog chromosomal abnormality.
Peb tsim kev sib txuas lus nrog tus menyuam
Tham nrog koj tus me nyuam yav tom ntej. Tsis txhob txaj muag los ntawm qhov koj hais rau tus txiv neej me me uas yeej tsis yog. Rau koj nws tau ntev lawm thiab yog yuav luag tiag. Yog li ntawd, qhia nws zaj dab neeg, tsis tseeb los yog tiag tiag, nyeem ntawv, hu nkauj, qhia xov xwm thiab kev xav. Qhov tseem ceeb tshaj plaws yog rau tus me nyuam hnov koj tus kheej zoo, qhov zoo ntawm qhov tseeb. Tsis tas li ntawd xwb, qhov kev siab ntsws ntawm kev xav yuav pib tsim ntawm koj, nws tsim tus me nyuam hais lus peev xwm.
Hli 15th ntawm lub cev xeeb tub los ntawm kev mob siab: ib qho lus nug rau tus kws kho mob
Ua kom cov kaus hniav tsis meej hauv cev xeeb tub, puas yog?
Yog hais tias rau cov poj niam uas muaj hnub nyoog me nyuam uas tsis xeeb tub, tso zis sai li 8% ntawm cov mob, rau cov poj niam cev xeeb tub nws yog 30-50%. Qhov no yog nyob rau hauv lub tsev menyuam, uas nce thiab nias ntawm lub zais zis, vim yog nws qhov peev xwm txo qis. Ntxiv rau, vim yog cov hormone progesterone, lub suab ntawm lub sphincter txo, qhov no ua rau qhov tseeb tias cov zis yuav tawm mus dawb. Yog li ntawd, tso zis thiab ntau heev.