Qhov sib txawv tseem ceeb ntawm keratinized thiab nonkeratinized epithelium yog tias keratinized epithelium impervious rau dej thaum nonkeratinized epithelium yog pervious rau dej.
Raws li muaj cov protein ntau keratin, muaj ob hom epithelia li keratinized epithelium thiab nonkeratinized epithelium. Keratinized epithelium tsim cov epidermis ntawm av vertebrates. Nonkeratinized epithelium kab kab noj hniav, esophagus thiab pharynx. Cov txheej txheej ntawm tes ntawm keratinized epithelium muaj cov hlwb tuag thiab ua rau muaj kev cuam tshuam zoo. Tsis tas li ntawd, nws yog impervious rau dej. Hauv qhov sib piv, txheej txheej sab nraud ntawm nonkeratinized epithelium muaj cov cell nyob, thiab nws yog qhov tsis zoo. Tsis tas li ntawd, nws yog pervious rau dej. Cov hlwb ntawm ob qho tib si epithelia nce hauv qhov loj me thaum lawv tsiv los ntawm basal mus rau prickle cell txheej. Lub synthesis ntawm tonofilaments kuj tshwm sim nyob rau hauv ob qho tib si epithelia.
YKeratinized Epithelium yog dab tsi?
Keratinized epithelium yog ib qho stratified squamous epithelium pom nyob rau hauv daim tawv nqaij, epidermis ntawm xibtes ntawm tes thiab ib leeg ntawm ko taw thiab masticatory mucosa. Keratinized epithelium tsim ib qho kev tiv thaiv zoo. Cov txheej saum npoo ntawm nws muaj cov cell tuag. Keratin yog tso rau ntawm qhov chaw. Lub protoplasm ntawm cov cell nto yog hloov los ntawm keratin proteins. Yog li ntawd, keratinized epithelium yog qhuav thiab impervious rau dej. Ntxiv mus, nws muab kev tiv thaiv zoo dua tiv thaiv abrasions.
Daim duab 01: Keratinized Epithelium
YNonkeratinized Epithelium yog dab tsi?
Nonkeratinized epithelium yog ib qho stratified squamous epithelium pom nyob rau hauv daim di ncauj, buccal mucosa, alveolar mucosa, mos palate, hauv qab ntawm tus nplaig, thiab pem teb ntawm lub qhov ncauj. Tsis zoo li keratinized epithelium, nonkeratinized epithelium yog moist, thiab nws muaj cov cell nyob hauv txheej txheej.
Daim duab 02: Nonkeratinized Epithelium
Qhov tseem ceeb tshaj plaws, cov txheej txheem protein, keratin, tsis muaj nyob rau hauv nonnkeratinized epithelium. Yog li ntawd, nws yog pervious rau dej thiab yog ib tug tsis zoo barrier. Ntxiv mus, nws muab kev tiv thaiv nruab nrab tiv thaiv kev puas tsuaj.
Dab tsi zoo sib xws ntawm Keratinized thiab Nonkeratinized Epithelium?
- Keratinized thiab nonkeratinized epithelium yog ob hom epithelia raws li muaj thiab tsis muaj keratin protein.
- Ob leeg keratinized thiab nonkeratinized epithelium muaj stratified squamous epithelium.
- Cov hlwb ntawm ob qho tib si epithelia nce loj thaum lawv tsiv los ntawm lub basal mus rau prickle cell txheej.
- Ntxiv mus, cov duab ntawm tes hloov pauv hauv ob qho tib si epithelia.
- Kev sib txuas ntawm tonofilaments kuj tshwm sim hauv ob qho tib si epithelia.
Qhov txawv ntawm Keratinized thiab Nonkeratinized Epithelium yog dab tsi?
Qhov sib txawv tseem ceeb ntawm keratinized thiab nonkeratinized epithelium yog tias keratinized epithelium impervious rau dej thaum nonkeratinized epithelium yog pervious rau dej. Tsis tas li ntawd, keratinized epithelium yog qhov cuam tshuam zoo, thaum nonkeratinized epithelium yog qhov cuam tshuam tsis zoo. Cov txheej txheem saum npoo ntawm keratinized epithelium yog tsim los ntawm cov hlwb tuag uas muaj keratin thaum txheej txheej ntawm nonkeratinized epithelium yog tsim los ntawm cov cell nyob thiab keratin tsis nyob hauv cov hlwb.
Cov lus qhia hauv qab no ntau qhov sib txawv ntawm keratinized thiab nonkeratinized epithelium hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Keratinized vs Nonkeratinized Epithelium
Keratinized epithelium thiab nonkeratinized epithelium yog ob stratified squamous epithelia. Keratin yog tso rau hauv cov cell saum npoo ntawm keratinized epithelium thaum keratin tsis nyob hauv cov hlwb ntawm nonkeratinized epithelium. Tsis tas li ntawd, nyob rau hauv keratinized epithelium, txheej txheej ntawm tes muaj cov tuag hlwb thaum nyob rau hauv nonkeratinized epithelium, txheej cell txheej muaj cov nyob cell. Keratinized epithelium yog qhov cuam tshuam zoo thiab muab kev tiv thaiv zoo dua tiv thaiv kev puas tsuaj. Hauv qhov sib piv, nonkeratinized epithelium yog qhov cuam tshuam tsis zoo thiab muab kev tiv thaiv me ntsis tiv thaiv kev puas tsuaj. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm keratinized thiab nonkeratinized epithelium.
