Video: Yuav ua li cas yog lub periodontal ligament?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov ligament ligament yog qhov tshwj xeeb tshwj xeeb cov ntaub so ntswg sib txuas ntawm cov cementum npog lub hniav hauv paus thiab pob txha alveolar. Nws yog muab los ntawm cheeb tsam cov hauv paus hniav, uas yog los ntawm lub hlwb cranial neural crest cells [1]. Cov ligament muaj ib qho array ntawm taw qhia cov fibers thiab yog vascular.
Tsis tas li nug, qhov lig lig lig lig lig lig lig lig ntawm lub caij twg?
Periodontal ligament . Cov periodontal ligament yog cov ntaub so ntswg txuas ntawm cov hauv paus hniav thiab cov pob txha alveolar. Nws suav nrog collagen fibrils tau teeb tsa hauv cov pab pawg tuab tuab thiab lawv cov cell txhawb nqa, cov hlab ntshav, qab haus huv thiab cov khoom hauv av.
Tsis tas li, puas tuaj yeem kho kab mob lig lig lig lig? "Feem ntau, yog tias nws yog me ntsis pinching ntawm qhov ntawd ligament , nws yuav txiav txim siab tus kheej hauv peb txog tsib hnub, "Cram hais. Cov kab nrib pleb, nthuav tawm lub paj hlwb, thiab lwj tsis ua kho ntawm lawv tus kheej, yog li ob peb hnub so so so koj hniav , nws yuav zoo li tsuas yog sprain.
Kuj paub, dab tsi yog periodontal ligament fibers?
Cov ligament ligament , feem ntau abbreviated li PDL, yog ib pawg ntawm cov ntaub so ntswg tshwj xeeb fibers qhov tseem ceeb txuas a hniav mus rau alveolar pob txha nyob rau hauv uas nws zaum. Nws ntxig rau hauv paus cementum ib sab thiab mus rau pob txha alveolar ntawm lwm qhov.
Cov hniav hauv daim ntawv yog dab tsi?
Cov hniav hniav , tseem hu ua kho hniav hnab, yog ua los ntawm cov hlwb mesenchymal thiab cov fibers nyob ib puag ncig cov hniav txha hniav laus thiab kho hniav papilla ntawm kev txhim kho hniav. Lawv txhim kho rau hauv cov pob txha alveolar, cov cementum nrog Sharpey cov fibers thiab cov kab mob lig lig lig lig feem.
Pom zoo:
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