2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Lub qe pib nws tsib hnub taug kev los ntawm qhov nqaim, hollow qauv hu ua lub raj xaum mus rau lub tsev menyuam. Raws li lub qe tab tom taug kev los ntawm txoj hlab pas, theem ntawm progesterone, lwm yam tshuaj hormones, nce, uas pab npaj lub tsev menyuam hauv plab rau cev xeeb tub.
Tus qauv blastocyst yog dab tsi uas dhau los ua lub embryo?
Lub blastocyst muaj ib lub xovtooj sab hauv (ICM), lossis embryoblast, uas tom qab tsim lub embryo, thiab txheej txheej ntawm cov hlwb, lossis trophoblast, uas tom qab tsim cov placenta.. Lub trophoblast nyob ib ncig ntawm lub cell loj thiab cov kua dej puv, blastocyst kab noj hniav hu ua blastocoele lossis blastocystic kab noj hniav.
Yuav ua li cas lub blastocyst tsim?
Nyob rau hauv tib neeg, blastocyst tsim pib kwv yees li 5 hnub tom qab fertilization thaum cov kua dej puv kab noj hniav qhib rau hauv morula, theem pib embryonic ntawm ib pob ntawm 16 hlwb. Lub blastocyst muaj ib txoj kab uas hla ntawm 0.1-0.2 hli thiab muaj 200-300 hlwb tom qab cleavage sai (cell division).
fertilized ovum hu ua ua ntej nws pib cleavage?
A zygote kev faib cov cell sai sai ( cleavage ) los ua a spherical pob ntawm cov hlwb: lub blastula; qhov no yuav txhim kho ntxiv mus rau a blastocyst.
Qhov twg hauv qab no yog qhov tseeb ntawm cov qauvkoob yuav tsum mus sau cov kua amniotic?
Amniotic kua yog sau los ntawm kev ntxig ib rab koob rau hauv niam lub plab. Sau cov qauv uas rab koob yuav tsum mus los mus sau cov kua amniotic.daim tawv nqaij thiab hypodermis, plab zom mov cov leeg nqaij, tsev menyuam, placenta.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Dab tsi yog cov reactants thiab cov khoom ntawm cov tshuaj tiv thaiv rau pem hauv ntej (sab laug-rau-txoj cai)?
Dab tsi yog cov reactants thiab cov khoom ntawm cov tshuaj tiv thaiv rau pem hauv ntej (sab laug-rau-txoj cai)?Glucose thiab Fructose yog cov reactants. Sucrose thiab Dej yog cov khoom. Puas yog cov tshuaj tiv thaiv tom ntej yog cov tshuaj tiv thaiv condensation lossis cov tshuaj tiv thaiv hydrolysis?
Dab tsi yog aniline xiav stained qauv hauv cov qauv nws yog ib qho hnyav?
Dab tsi yog aniline xiav-stained qauv hauv cov qauv? Nws yogstringy pawg hauv qab plab hnyuv epithelium uas txuas mus rau hauv lub villi. "Aniline xiav khi rau cov txheej txheem extracellular xws li cov fibers hauv lamina propria. Lamina propria yog lub npe ntawm cov ntaub so ntswg sib txuas hauv qab plab hnyuv epithelium.
Dab tsi yog qhov ceev ntawm cov hlau raug tshem tawm los ntawm lub cuab yeej ntawm lub workpiece?
1. Kev nrawm . Kev txiav ceev (v) ntawm ib lub cuab yeej yog qhov ceev uas cov hlau raug tshem tawm los ntawm lub cuab yeej ntawm lub workpiece. Nyob rau hauv ib lub tshuab dhos, nws yog lub peripheral ceev ntawm kev ua hauj lwm yav dhau los cov cuab yeej txiav qhia nyob rau hauv meters ib feeb.
Qhov chaw twg yog qhov zoo dua yog dab tsi yog cov qauv siv lub locator?
ID thiab lub npe tus cwj pwm ua qhov tseem ceeb tshaj lwm qhov chaw yog tias koj lub vev xaib muaj tus ID thiab lub npe tshwj xeeb, ces nws ib txwm xav kom siv lawv hloov XPath vim lawv nrawm dua thiab ntau dua muaj txiaj ntsig. Thaum siv cov chaw nyob, xyuas kom meej tias koj lub chaw nrhiav cov ntsiab lus meej rau cov khoom xav tau.
