Video: Dab tsi yog qhov ncauj embryology?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qhov ncauj embryology yog kev kawm txog kev txhim kho ntawm qhov ncauj kab noj hniav, thiab cov txheej txheem hauv nws, thaum tsim thiab txhim kho ntawm embryo hauv thawj 8 lub lis piam ntawm cev xeeb tub. Histology yog thaj chaw tshwj xeeb ntawm kev tshawb fawb cuam tshuam nrog cov qauv me me thiab ua haujlwm ntawm cov ntaub so ntswg.
Yog li ntawd, dab tsi yog qhov ncauj keeb kwm?
Qhov ncauj histology yog kev tshawb fawb me me Qhov ncauj Mucosa, kev hloov pauv tus qauv hauv kev cuam tshuam nrog kev ua haujlwm xav tau, cov txheej txheem keratinization, qhov chaw kho mob ntawm gingiva, Dentogingival & Mucocutaneous sib txuas & lingual papillae. Embryology yog kawm txog kev loj hlob ntawm cev xeeb tub thoob plaws theem ua ntej yug.
Ib qho ntxiv, tus hniav tau tsim li cas? Cov hniav germ yog kev sib sau ua ke ntawm cov cell uas thaum kawg tsim a hniav . Cov hlwb no tau muab los ntawm ectoderm ntawm thawj pharyngeal koov thiab ectomesenchyme ntawm lub paj hlwb. Cov hniav cov kab mob tau muab faib ua peb ntu: cov hniav txha hniav laus, cov hniav papilla thiab lub hnab hniav lossis cov hauv paus hniav.
Ua kom pom qhov no, dab tsi yog keeb kwm keeb kwm thiab embryology?
Txog Department of Histology thiab Embryology Kev qhia theoretical (hauv daim ntawv ntawm kev qhuab qhia) suav nrog keeb kwm keeb kwm ntawm cov ntaub so ntswg, lub cev thiab cov kab ke, suav nrog ntau qhov tshwj xeeb hauv kev kho mob sib cuam tshuam uas qhia meej txog lawv cov morphology thiab kev ua haujlwm. Cov tub ntxhais kawm tuaj yeem kawm tau keeb kwm keeb kwm cov hnoos qeev nyob tom tsev.
Peb hom mucosa qhov ncauj yog dab tsi?
Histologically, cov qhov ncauj mucosa tau muab cais ua peb pawg, hauv ob sab phlu, masticatory, thiab tshwj xeeb. Lub epithelium ntawm daim tawv nqaij cov mucosa yog nonkeratinized stratified squamous, whereas ntawm masticatory cov mucosa yog ortho- lossis parakeratinized, los tiv thaiv nws los ntawm kev txiav cov rog ntawm mastication.
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