![Dab tsi yog somites hauv embryology? Dab tsi yog somites hauv embryology?](https://i.answers-medical.com/preview/medical-health/13967196-what-are-somites-in-embryology-j.webp)
Video: Dab tsi yog somites hauv embryology?
![Video: Dab tsi yog somites hauv embryology? Video: Dab tsi yog somites hauv embryology?](https://i.ytimg.com/vi/UdtXtanzXfw/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Somite, hauv embryology , ib qho ntawm qhov ua ntu ntev ntawm ntu zoo li ntu uas mesoderm, txheej nruab nrab ntawm cov ntaub so ntswg, ntawm ob sab ntawm cev xeeb tub txha nraub qaum yuav muab faib. Lub sij hawm somite Nws kuj tseem siv tau ntau dua los xa mus rau lub cev ntu, lossis metamere, ntawm ib qho tsiaj segmented.
Cov lus nug tseem yog, cov somites ua dab tsi?
Somites yog cov neeg nyob ua ntej ntawm cov cell uas ua rau muaj cov txheej txheem tseem ceeb cuam tshuam nrog lub cev pob txha lub phiaj xwm thiab thaum kawg yuav sib txawv rau hauv daim tawv nqaij, pob txha pob txha, pob txha mos, leeg, thiab pob txha. Kev tsim tawm pib raws li paraxial mesoderm cells sib koom ua ke ntawm cov hlwb hu ua somitomeres.
Ntxiv mus, somites tsim los ntawm qhov twg? Cov somites (lub sijhawm dhau los: ntu ib txwm muaj) yog txheej txheej ob tog ua ke ntawm paraxial mesoderm uas tsim nyob rau theem embryonic ntawm somitogenesis, raws lub taub hau-rau-tus tw axis hauv cov tsiaj sib cais.
Ib yam li ib tug yuav nug, dab tsi yog somites hauv lub cev?
Hauv verterbrate embryo, raws li cov txheej txheem txheej thaum ub tau rov qab los, lub paraxial mesoderm faib ua ntu ntawm cov cell hu ua cov somites . Somites yog cov txheej txheem hloov pauv uas yuav ua rau nce ntxiv ntawm cov leeg ntawm cov leeg pob txha thiab tav, dermis ntawm lub dorsum, pob txha pob txha ntawm lub cev phab ntsa, nraub qaum thiab nqua.
Muaj pes tsawg tus somites uas tib neeg embryo muaj?
Hauv tib neeg 42-44 ib khub 9 - 13 yog tsim nyob rau hauv lub neural raj. Cov no suav nrog los ntawm thaj tsam cranial mus txog rau lub embryo tus Tsov tus tw. Ob peb caudal somites ploj mus dua, uas yog vim li cas tsuas yog 35-37 somite khub tuaj yeem suav thaum kawg.
Pom zoo:
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