2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob rau hauv lub lis piam 4 txog 5 ntawm kev xeeb tub thaum ntxov, blastocyst loj hlob thiab tsim nyob rau hauv lub plab hauv plab. Cov hlwb sab nraud ncav cuag los tsim kev sib txuas nrog leej niam cov ntshav. Tom qab qee lub sijhawm, lawv yuav tsim cov placenta (tom qab yug menyuam). Cov pab pawg sab hauv ntawm cov hlwb yuav loj hlob mus rau hauv lub embryo.
lub lim piam twg lub cev xeeb tub?
Txawm hais tias txhua cev xeeb tub sib txawv, koj tuaj yeem cia siab tias lub cev xeeb tub yuav nyob ib puag ncig lub lis piam 8 txog 12 ntawm cev xeeb tub, nrog 10 lub lis piam yog lub sijhawm nruab nrab rau cov poj niam feem ntau. Qhov no tsis tau txhais hais tias koj tus kheej cov tshuaj hormones thiab khoom noj khoom haus tsis tseem ceeb.
Puas muaj qhov tso quav ntawm 6 lub lis piam?
Koj lub cev thaum 6-7 lub lis piam xeeb tub
Nyob hauv daim duab no, koj tuaj yeem pom qhov pib ntawm placenta hauv tsev menyuam. Lub embryo yog li 1/4 nti rau 1/2 nti ntev thiab hnyav 1/1,000th ntawm ib ooj. Lub embryo lub taub hau yog loj nyob rau hauv feem rau tag nrho lub cev.
Puas lub cev tso rau ntawm 7 lub lis piam?
Cov placenta yog ib qho khoom nruab nrog uas tsim hauv koj lub tsev menyuam los txhawb tus menyuam hauv plab thaum cev xeeb tub. Nws feem ntau txuas rau sab saum toj lossis sab ntawm lub tsev menyuamthiab loj hlob ntawm tus nqi piv rau tus menyuam hauv plab thaum xub thawj. Thaum ntxov li 10 lub lis piam, cov placenta tuaj yeem khaws tau ntawm ultrasound.
Koj tuaj yeem qhia tau thaum ntxov npaum li cas ntawm cov placenta?
Feem ntau, koj tus kws kho mob yuav tshuaj xyuas qhov chaw ntawm koj cov placenta thaum lub sijhawm cev xeeb tub, uasyuav tsum muaj nruab nrab ntawm 18 thiab 21 lub lis piam ntawm cev xeeb tub.
Pom zoo:
Thaum cev xeeb tub thaum ntxov thaum lub cramping nres?
Lossis qee tus poj niam hnov ntxhiab zoo li plooj lossis stabbing mob ntawm ib lossis ob sab ntawm lawv lub plab. Cov mob yuav tuaj thiab mus. Feem ntau, qhov mob ntawm plab mob thaum cev xeeb tub yog me me, thiab ploj mus thaum koj hloov koj txoj haujlwm, pw tsaug zog, lossis mus rau chav dej.
Puas yog neutrophilia tshwm sim thaum cev xeeb tub?
Tag nrho cov xov tooj dawb suav yuav nce siab thaum cev xeeb tub vim muaj ntau cov neutrophils. Neutrophils tseem tuaj yeem ua kom pom qhov "sab laug" (ntau dua ntawm cov qhab neutrophils). Txawm li cas los xij, qhov neutrophilia no feem ntau tsis cuam tshuam nrog kev kis kab mob lossis mob.
Puas yog bartholin cysts tshwm sim thaum cev xeeb tub?
Qhov tshwm sim ntawm Bartholin caj pas Bartholin caj pas Bartholin cov qog (los yog ntau dua vestibular qog) yog cov kabmob tseem ceeb ntawm cov poj niam cev xeeb tub. Danish anatomist Caspar Bartholin Secundus thawj zaug piav rau lawv hauv 1677.
Thaum twg organogenesis tshwm sim thaum cev xeeb tub?
Tom qab ua tiav ntawm gastrulation lub embryo nkag mus rau hauv organogenesis - qhov no yog cov txheej txheem uas cov ectoderm, mesoderm thiab endoderm hloov dua siab tshiab rau hauv lub cev ntawm lub cev. Cov txheej txheem no tshwm sim nruab nrab ntawm lub lim tiam 3 txog lub lim tiam 8.
Puas yog ntshav tshwm sim thaum cev xeeb tub?
Ntshav thiab pom los ntawm qhov chaw mos thaum cev xeeb tub yog qhov tshwm sim. Txog li 1 ntawm 4 (txog 25%) ntawm tag nrho cov poj niam cev xeeb tub muaj qee qhov los ntshav los yog pom thaum lawv cev xeeb tub. Los ntshav thiab pom thaum cev xeeb tub tsis yog ib txwm txhais tau tias muaj teeb meem, tab sis lawv tuaj yeem yog lub cim ntawm kev nchuav menyuam lossis lwm yam teeb meem loj.
