![Tus qauv ntawm cov kab mob epithelial yog dab tsi? Tus qauv ntawm cov kab mob epithelial yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14164780-what-is-the-structure-of-epithelial-cells-j.webp)
Video: Tus qauv ntawm cov kab mob epithelial yog dab tsi?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Epithelial cov ntaub so ntswg yog cov duab zoo ib yam, ntim nruj nreem thiab ua ib daim ntawv txuas mus. Nws yuav luag tsis muaj qhov chaw sib txuas lus. Txhua epithelium feem ntau yog cais los ntawm cov ntaub so ntswg los ntawm ib qho extracellular fibrous hauv qab daim nyias nyias. Lub hauv ob sab ntawm lub qhov ncauj, lub ntsws alveoli thiab lub raum tubules tag nrho yog ua los ntawm epithelial ntaub so ntswg.
Yog li ntawd, dab tsi yog qhov zoo ntawm cov epithelial cells?
Cov ntaub so ntswg epithelial tuaj yeem muaj columnar , kub , los yog squamous cov duab ntawm tes. Cov ntaub so ntswg epithelial muaj cov cib sib txawv - lossis cov hlwb, uas yog. Muaj columnar hlwb, uas txhais tau tias 'kem zoo li cov cell'; kub cell, uas yog lub voos xwmfab zoo li lub hlwb; thiab squamous cell, uas yog flattened thiab scale-like cells.
Tom qab, lo lus nug yog, dab tsi organelles nyob rau hauv epithelial hlwb? Nws kuj muaj xws li cov plaub hau zoo li folds hauv plasma membrane.
- Ob hom tsiaj thiab epithelial suav nrog Nucleus, Mitochondria, Cytoplasm, Endoplasmic Reticulum, thiab Golgi Apparatus.
- Lawv ob leeg sib txawv vim hais tias ib tug tsiaj cell muaj ntau organelles uas yog: Centrosome, Lysosome, Vacuole, Nucleolus, thiab Ribosomes.
Ua qhov no hauv kev txiav txim siab, cov duab ntawm epithelial cells cuam tshuam nrog lawv li cas?
Cuboidal cov kab mob epithelial , ua lawv lub npe qhia, yog zoo li lub voos xwmfab. Cov no feem ntau pom muaj nyob hauv cov ntaub so ntswg uas zais lossis nqus cov tshuaj, xws li hauv ob lub raum thiab qog. Kum cov kab mob epithelial ntev thiab nyias, zoo li kab. Cov no feem ntau pom muaj nyob hauv cov chaw uas zais cov hnoos qeev xws li lub plab.
Dab tsi yog cov hlwb epithelial hauv lub mis?
Cov tshwj xeeb no cov kab mob epithelial hu ua "ductal" lossis "luminal" hlwb ntawm lub mis . Cov kab mob epithelial nyob rau hauv lwm qhov chaw ntawm lub cev kab lub cev nto (xws li "squamous epithelium cov ntaub so ntswg "ntawm daim tawv nqaij) thiab lub cev kab noj hniav. Cov epithelial hlwb yog ntawm tes lossis keeb kwm ntawm carcinomas.
Pom zoo:
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