![Dab tsi yog qhov txawv ntawm notochord thiab pob txha? Dab tsi yog qhov txawv ntawm notochord thiab pob txha?](https://i.answers-medical.com/preview/medical-health/13927021-what-is-the-difference-between-notochord-and-backbone-j.webp)
Video: Dab tsi yog qhov txawv ntawm notochord thiab pob txha?
![Video: Dab tsi yog qhov txawv ntawm notochord thiab pob txha? Video: Dab tsi yog qhov txawv ntawm notochord thiab pob txha?](https://i.ytimg.com/vi/HlDnBGJM6uA/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
yog li notochord yog tus qauv yooj yim zoo li tus pas nrig uas tsim los txhawb lub cev hauv qis tshaj chordates; ib qho tseem ceeb nraub qaum thaum pob txha yog cov kab mob ntawm cov pob txha, sib cais los ntawm cov disks, uas ntim thiab tiv thaiv tus txha nqaj qaum , thiab sau nruab nrab ntawm nraub qaum hauv cov tsiaj txhu.
Tsis tas li kom paub yog, puas yog lub pob txha caj qaum?
A notochord yog qhov pib thaum pib rau pob txha . Nws tshwm rau hauv embryos raws li tus pas nrig hloov pauv me me ua los ntawm cov cell los ntawm mesoderm, uas yog ib ntawm peb txheej ntawm cov hlwb ntawm embryos. Notochords tsuas yog pom hauv phylum chordata, ib pawg ntawm cov tsiaj uas suav nrog tib neeg.
Ib yam nkaus, puas yog notochord mesoderm lossis ectoderm? Cov notochord (axial mesoderm , notochordal txheej txheem) yog cov txheej txheem piav qhia tsim hauv txhua lub chordate embryos (qeb cais se: phylum Chordata). Nws yog ib qho txheej txheem txheej thaum ntxov hauv trilaminar embryo mesoderm txheej pib ventral rau ectoderm , tom qab ntawv neural phaj thiab thaum kawg neural tube.
Thiaj li, ua li cas rau lub notochord hauv vertebrates?
Hauv vertebrates , cov notochord loj hlob mus rau hauv kab lus vertebral. Hauv qee qhov chordates, nws tseem nyob thoob plaws lub neej raws li lub hauv paus kev txhawb nqa lub cev, thaum nyob hauv feem ntau vertebrates nws loj hlob mus rau hauv lub nucleus pulposus ntawm intervertebral disc.
Dab tsi yog notochord thiab nws ua haujlwm li cas?
Notochord yog tus txhais qauv ntawm chordates, thiab muaj lub luag haujlwm tseem ceeb hauv kev txhim kho vertebrate. Nws ua haujlwm los ua qhov chaw nruab nrab ntawm cov cim qhia tias cov qauv ib puag ncig cov ntaub so ntswg thiab ua lub cev pob txha loj ntawm kev tsim cov embryo.
Pom zoo:
Dab tsi yog CPT txoj cai los tshaj tawm cov pob txha pob txha xav tau ua rau pob txha pob txha thaum phais pob txha?
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Pib 01/01/18, CPT code 20939 yuav tsum tau siv los tshaj tawm cov pob txha pob txha xav tau rau pob txha pob txha hauv kev phais pob txha
Qhov txawv ntawm pob txha ossification thiab kho cov pob txha yog dab tsi?
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Kev Txhim Kho Cov Pob Txha Lamellar yog tas li kho los ntawm osteoclasts thiab osteoblasts. Muaj ob txoj kev sib txawv uas cov pob txha tsim los ntawm cov ntaub so ntswg mesenchymal: Endochondral ossification yog cov txheej txheem uas cov pob txha mos hloov zuj zus los ntawm cov pob txha ntawm daim phiaj kev loj hlob ntawm epiphyseal
Dab tsi yog qhov sib txawv ntawm cov tav pob txha thiab pob txha tawg?
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Cov tav tawg yog ib qho kev raug mob uas tshwm sim thaum ib qho ntawm cov pob txha hauv koj cov tav tawb tawg tawg. Thaum tseem mob, cov kab tav tawg tsis yog qhov txaus ntshai txaus raws li cov tav uas tau tawg mus rau hauv nyias daim. Lub jagged ntug ntawm cov pob txha tawg tuaj yeem ua rau cov hlab ntsha loj lossis cov kab mob hauv nruab nrog cev, xws li lub ntsws
Dab tsi yog qhov txawv ntawm pob txha thiab pob txha?
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Tag nrho cov pob txha nyob rau hauv tib neeg lub cev ua ke yog hu ua skeletal system. Lub cev pob txha muab lub zog thiab rigidity rau peb lub cev yog li peb tsis tsuas yog flop ncig zoo li jellyfish. Lwm cov pob txha, zoo li pob txha hauv peb ob txhais ceg thiab caj npab, pab peb txav mus los los ntawm kev txhawb nqa peb cov leeg
Dab tsi yog qhov txawv ntawm qhov tseeb qhov pib thiab qhov sib txawv qhov pib?
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Qhov pib tsis txaus yog qhov tsawg kawg ntawm kev txhawb siab xav tau rau ib tus neeg kom pom qhov kev txhawb siab 50 feem pua ntawm lub sijhawm. Qhov sib txawv ntawm qhov sib txawv yog qhov sib txawv me tshaj hauv kev txhawb nqa uas tuaj yeem kuaj pom 50 feem pua ntawm lub sijhawm