Qhov sib txawv tseem ceeb ntawm archenteron thiab blastocoel yog tias archenteron yog cov plab hnyuv tsim thaum lub plab zom mov hauv kev tsim cov zygote, uas tom qab ntawd txhim kho rau hauv lub plab zom mov, thaum blastocoel yog cov kua dej sab hauv los yog cov kab noj hniav puv ntawm cov blastula tsim thaum lub sij hawm blastulation.
Fertilization yog qhov tshwm sim ntawm kev sib deev kev sib deev uas tsim ib lub diploid zygote. Lub zygote nws thiaj li hloov mus ua ib lub embryo. Lub embryo dhau los ua mitotic divisions thiab cellular sib txawv, ua ib tug multicellular embryo. Morula yog ib theem pib ntawm lub embryo, uas muaj 16 hlwb. Morula dhau los ua blastula ntawm xya cleavage. Blastula muaj 128 hlwb. Nws yog ib tug hollow sphere ntawm cov hlwb nyob ib ncig ntawm lub puab kab noj hniav uas muaj kua. Thiab, cov kua dej puv kab noj ntawm blastula yog hu ua blastocoel. Blastula folds inwards thiab loj ua rau gastrula, uas yog ib tug multilayered qauv uas muaj thawj kab mob khaubncaws sab nraud povtseg. Archenteron yog thawj lub plab nyob rau hauv lub gastrula. Archenteron txhim kho rau hauv lub plab zom mov tom qab.
Archenteron yog dab tsi?
Archenteron yog thawj lub plab tsim thaum lub plab zom mov hauv cov zygote tsim. Blastula folds inwards thiab loj los tsim lub gastrula theem. Muaj peb txheej kab mob hauv gastrula. Qhov nruab nrab kab noj hniav ntawm gastrula yog thawj lub plab lossis archenteron uas txhim kho rau hauv lub plab zom mov tom qab.
Daim duab 01: Archenteron
Vim archenteron yog kab noj hniav ntawm gastrula, nws tseem hu ua gastrocoel. Archenteron cov ntaub ntawv los ntawm ob qho tib si endoderm thiab mesoderm. Yog li nws muaj keeb kwm endo-mesodermal. Blastopore yog qhov qhib kawg ntawm archenteron. Blastopore tuaj yeem tsim rau hauv qhov ncauj lossis qhov quav.
Blastocoel yog dab tsi?
Blastocoel yog ib qho kua dej sab hauv uas muaj qhov khoob. Blastocoel tuaj yeem pom hauv blastula, thiab nws tau tsim thaum lub sij hawm blastulation thaum ntxov embryo dhau los ua blastula. Nws tseem hu ua blastocyst kab noj hniav. Ib txheej txheej ntawm tes hu ua blastoderm ncig lub blastocoel.
Daim duab 02: Blastocoel
Blastocoel tsim los ntawm kev sib cais ntawm oocyte. Qhov tseeb, nws yog thawj kab noj hniav tsim nyob rau hauv embryogenesis. Cov kua dej ntawm blastocoels muaj ntau yam sib txawv, suav nrog cov amino acids, proteins, loj hlob yam, suab thaj, ions, uas yog qhov tseem ceeb rau kev sib txawv ntawm tes. Ntxiv mus, blastocoel tso cai rau blastomeres txav, quav, thiab nthuav dav thaum lub plab zom mov.
Dab tsi zoo sib xws ntawm Archenteron thiab Blastocoel?
- Archenteron thiab blastocoel yog ob hom kab noj hniav tshwm thaum lub sij hawm embryonic txoj kev loj hlob.
- Ob leeg yog cov qauv tseem ceeb tsim nyog rau kev loj hlob ntawm embryo.
- Archenteron cov ntaub ntawv tom qab tsim ntawm blastocoels.
Qhov txawv ntawm Archenteron thiab Blastocoel yog dab tsi?
Archenteron yog thawj lub plab lossis lub plab embryonic kab noj hniav tsim thaum lub sij hawm gastrulation, thaum blastocoel yog cov kua dej puv kab noj hniav ntawm blastula uas ploj zuj zus thaum lub sij hawm gastrulation thiab mesoderm tsim. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm archenteron thiab blastocoel. Tsis tas li ntawd, archenteron txhim kho mus rau hauv kab noj hniav ntawm lub plab zom mov thaum kawg ntawm gastrulation, thaum blastocoel ua obliterated thaum kawg ntawm blastulation. Yog li, qhov no kuj yog qhov sib txawv tseem ceeb ntawm archenteron thiab blastocoel.
Cov hauv qab no qhia txog qhov sib txawv ntawm archenteron thiab blastocoel.
Summary – Archenteron vs Blastocoel
Blastocoel thiab archenteron yog ob hom kab mob ntawm tes tsim thaum lub sij hawm embryogenesis. Archenteron yog lub plab primitive tsim thaum lub sij hawm gastrulation, thaum blastocoel yog cov kua dej puv kab noj hniav tsim thaum lub sij hawm blastulation. Hauv luv luv, archenteron yog kab noj hniav ntawm gastrula, thaum blastocoel yog kab noj hniav ntawm blastula. Archenteron nws thiaj li dhau los ua kab noj hniav ntawm lub plab zom mov, thaum blastocoel ploj zuj zus vim qhov tsim ntawm mesoderm. Blastocoel yog thawj kab noj hniav tshwm sim thaum lub sij hawm embryogenesis, thaum archenteron tsim tom qab tsim ntawm blastocoel. Yog li, qhov no qhia txog qhov sib txawv ntawm archenteron thiab blastocoel.
