Feem ntau hais lus, ectoderm sib txawv los tsim cov ntaub so ntswg epithelial thiab neural ( qaum qaum, peripheral qab haus huv thiab lub hlwb). Qhov no suav nrog daim tawv nqaij, linings ntawm lub qhov ncauj, qhov quav, qhov ntswg, hws qog, plaub hau thiab rau tes, thiab cov hniav enamel. Lwm hom epithelium yog muab los ntawm endoderm.
Lub cev twg yog mesodermal hauv keeb kwm?
Mesoderm muab nce rau skeletal nqaij, cov leeg du, cov hlab ntsha, pob txha, pob txha mos, pob qij txha, cov ntaub so ntswg, cov qog endocrine, lub raum cortex, cov leeg nqaij, cov kab mob urogenital., uterus, fallopian tube, testicles and blood cells from the spinal cord and lymphatic tissue (saib Fig.
Puas ntsws ectodermal hauv keeb kwm?
Kev tsim ntawm lub ntsws buds
Cov epithelium ntawm sab hauv ntawm lub larynx, trachea, bronchi thiab ntsws yog tag nrho ntawm cov keeb kwm endodermalCov pob txha, cov leeg thiab Cov ntaub so ntswg ntawm trachea thiab ntsws yog muab los ntawm splanchnic mesoderm. Lub ntsws bud yog qhib kev sib txuas lus nrog foregut.
Lub cev twg yog cov kab mob endodermal hauv keeb kwm?
Endoderm cells ua rau qee lub cev, ntawm lawv txoj hnyuv, plab, plab hnyuv, ntsws, siab, thiab txiav txiav Lub ectoderm, ntawm qhov tod tes, nws thiaj li tsim tau qee yam "sab nrauv" ntawm lub cev, suav nrog cov epidermis (sab nrauv ntawm daim tawv nqaij) thiab plaub hau.
Qhov twg ntawm cov qauv hauv qab no yog ectodermal hauv keeb kwm?
Epidermis, hlwb, retina.
