![Dermatomes tsim tau li cas? Dermatomes tsim tau li cas?](https://i.answers-medical.com/preview/medical-health/13913181-how-are-dermatomes-formed-j.webp)
Video: Dermatomes tsim tau li cas?
![Video: Dermatomes tsim tau li cas? Video: Dermatomes tsim tau li cas?](https://i.ytimg.com/vi/9rE5b6C4wwE/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hauv kev tsim cov embryo, daim tawv nqaij tshwm sim los ntawm somitic mesoderm, uas tsim los ntawm nruab nrab txheej ntawm cov ntaub so ntswg embryonic ib sab mus rau txoj hlab ntsha loj hlob. Dermatomes tau teeb tsa nrog cov qauv ntu ntu hauv pob txha caj qaum, txawm hais tias qee qhov kev sib tshooj tshwm sim nrog thaj chaw zoo sib xws saum toj thiab hauv qab.
Kuj paub yog, Dermatomes yog dab tsi?
A daim tawv nqaij yog thaj tsam ntawm daim tawv nqaij uas tau muab los ntawm cov hlab ntsha sib txuas los ntawm ib leeg hauv qab ntawm cov hauv paus ntawm cov leeg leeg uas ua ib feem ntawm cov leeg leeg. Muaj 8 lub paj hlwb ntawm ncauj tsev menyuam (C1 yog qhov tshwj tsis yog tsis muaj daim tawv nqaij ), 12 thoracic qab haus huv, 5 lumbar qab haus huv thiab 5 sacral qab haus huv.
Tsis tas li ntawd, vim li cas Dermatomes ntawm caj npab & txhais ceg zoo li muab kauv ib ncig ntawm txhais ceg? Qis dua nqua thiab genitalia Cov daim tawv nqaij ntawm qhov qis limb yog faib nyob rau hauv muab kauv kev npaj nrog ntu L1-S5. Qhov no yog vim li cas nqua tig los yoog raws txoj haujlwm txhim kho thaum txhim kho. Nco ntsoov, daim tawv nqaij S1, S4, thiab S5 yog tsuas yog nyob rau sab nraub qaum.
Tom qab ntawd, Dermatomes ua haujlwm li cas?
A daim tawv nqaij yog thaj tsam ntawm daim tawv nqaij ntawm tib neeg lub cev uas feem ntau yog muab los ntawm cov ceg ntawm cov leeg leeg leeg leeg leeg leeg leeg. Cov hlab ntsha txha nraub qaum nkag mus rau cov hauv paus paj hlwb ntawm tus txha nqaj qaum, thiab lawv cov ceg mus txog rau ib puag ncig ntawm lub cev.
Vim li cas peb thiaj kuaj Dermatomes?
Lub Hom Phiaj. Kev Xeem ntawm daim tawv nqaij yog ib feem ntawm kev kuaj mob paj hlwb nrhiav radiculopathy raws li kev hloov pauv hauv qhov tshwj xeeb daim tawv nqaij tuaj yeem pab txiav txim siab theem pathological disc.
Pom zoo:
Lub ntsej muag ntawm lub ntsej muag tau tsim li cas?
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Lub ntsej muag ntawm lub ntsej muag feem ntau koom ua ke nrog cov ceg ntoo hauv ntej ntawm cov hlab ntshav retromandibular los tsim cov leeg leeg ntawm lub ntsej muag, uas hla cov hlab ntsha sab nrauv carotid thiab nkag mus rau sab hauv cov hlab ntshav ntawm qhov sib txawv hauv qab cov pob txha hyoid
Lub cim xeeb tiv thaiv tau tsim li cas?
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Kev tiv thaiv kab mob nco qab tshwm sim tom qab thawj qhov kev tiv thaiv kab mob tiv thaiv antigen. Kev nco lub cev tiv thaiv kab mob yog li tsim los ntawm txhua tus neeg, tom qab pom thawj zaug dhau los, rau tus neeg muaj peev xwm txaus ntshai. Tom qab thawj qhov kev tiv thaiv kab mob tau ploj mus, cov txiaj ntsig ntawm cov cell ntawm kev tiv thaiv kab mob tau raug tshem tawm
Tus txha nqaj qaum tau tsim li cas?
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Txhua lub paj hlwb tau tsim los ntawm kev sib txuas ua ke ntawm cov hlab ntsha los ntawm dorsal thiab ventral keeb kwm ntawm tus txha caj qaum. Cov hauv paus hauv qab nqa nqa cov kev xav zoo ib yam axons, thaum lub hauv paus cov hauv paus nqa lub cev muaj zog zoo sib xws
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Cov protein tivthaiv ntawm glycoprotein tau sib sau ua ke ntawm qhov ntxhib endoplasmic reticulum los ntawm qhov sib ntxiv ntawm cov amino acids, tsim cov kab tawm polymer ntawm cov amino acids hu ua polypeptide. Ntau N-txuas glycoproteins thaum kawg dhau los ua ib feem ntawm cov cell membrane lossis zais los ntawm lub cell
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Cov qe ntshav no (uas tseem hu ua corpuscles lossis 'tsim cov ntsiab lus') suav nrog erythrocytes (cov qe ntshav liab, RBCs), leukocytes (cov qe ntshav dawb), thiab thrombocytes (platelets). Los ntawm qhov ntim, cov qe ntshav liab muaj li ntawm 45% ntawm cov ntshav tag nrho, cov ntshav plasma txog 54.3%, thiab cov qe dawb txog 0.7%