Video: Puas yog Neurulation tshwm sim tom qab gastrulation?
2024 Tus sau: Edward Hancock | [email protected]. Kawg hloov kho: 2023-12-16 01:32
Neurulation yog tsim ntawm neural raj los ntawm ectoderm ntawm lub embryo. Nws ua raws gastrulation nyob rau hauv tag nrho cov vertebrates. Thaum lub sij hawm peb lub lim tiam ntawm cev xeeb tub, notochord xa cov cim rau lub overlying ectoderm, inducing nws mus ua neuroectoderm.
Ntawm no, puas yog Neurulation ib feem ntawm gastrulation?
Raws li qhov tshwm sim ntawm cov cell txav thaum lub sijhawm gastrulation , lub notochord los txhais lub embryonic midline. Thaum lub sijhawm txheej txheem no, hu ua neurulation , midline ectoderm uas muaj cov cell thickens mus rau hauv ib qho txawv columnar epithelium hu ua neural phaj.
Ib tug kuj yuav nug, ua li cas cov txiaj ntsig ntawm gastrulation thiab Neurulation? Yuav ua li cas cov txiaj ntsig ntawm gastrulation thiab neurulation pab txhawb tib neeg txoj kev loj hlob?? Gastrulation tsim peb txheej cell ntawm lub embryo, thiab neurulation ua rau kev tsim ntawm lub paj hlwb.
Kuj nug, Neurulation tshwm sim li cas?
Neurulation . Neurulation yog ib txoj hauv kev uas cov phaj neural khoov thiab tom qab fuses los tsim cov raj hollow uas nws thiaj li sib txawv rau hauv lub hlwb thiab tus txha caj qaum ntawm lub hauv nruab nrab paj hlwb.
Puas gastrulation tshwm sim tom qab implantation?
Tom qab implantation , embryonic hlwb raug gastrulation , nyob rau hauv uas lawv sib txawv thiab sib cais mus rau hauv lub embryonic disc thiab tsim peb thawj kab mob khaubncaws sab nraud povtseg (lub endoderm, mesoderm, thiab ectoderm). Los ntawm cov txheej txheem ntawm embryonic folding, lub fetus pib ua zoo.
Pom zoo:
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