Qhov sib txawv tseem ceeb ntawm squamous epithelium thiab columnar epithelium yog tias squamous epithelium muaj cov hlwb flattened thiab scale-zoo li thaum lub columnar epithelium muaj cov kab zoo li kab.
Peb muaj plaub hom ntaub so ntswg sib txawv hauv peb lub cev. Lawv yog cov ntaub so ntswg, cov nqaij mos, cov ntaub so ntswg, thiab cov ntaub so ntswg epithelial. Cov ntaub so ntswg epithelial yog ib qho tseem ceeb hauv kev npog lub cev, ua rau lub cev kab noj hniav, thiab tsim cov qog. Cov ntaub so ntswg epithelial tsis muaj cov hlab ntsha, tab sis nws yog innervated nyob rau hauv cov xwm. Nws muaj cov txheej txheem ntawm tes nruj nreem txuas ua ke. Epithelium ua tiav ntau yam haujlwm hauv peb lub cev. Nws tiv thaiv peb lub cev los ntawm hluav taws xob, desiccation, co toxins, thiab lub cev raug mob. Nyob rau hauv lub digestive ib ntsuj av, lub epithelium pab txhawb cov as-ham. Tsis tas li ntawd, nws secretes hws, mucus, enzymes thiab lwm yam khoom ntawm ducts. Cov ntaub so ntswg epithelial tuaj yeem muab faib ua peb daim duab; squamous, columnar thiab cuboidal, thiab raws li tus naj npawb ntawm cov khaubncaws sab nraud povtseg, nws yuav ua tau yooj yim epithelium los yog stratified epithelium.
YSquamous Epithelium yog dab tsi?
Squamous epithelium yog ib hom ntawm cov ntaub so ntswg epithelial uas muaj flattened thiab nplai zoo li cov hlwb. Cells dav dua lawv qhov siab. Nws muaj ob daim ntawv; yooj yim squamous epithelium thiab stratified squamous epithelium. Qhov yooj yim squamous epithelium muaj ib txheej ntawm cov hlwb uas tiaj tus. Nws zoo nkaus li ib daim nyias nyias vim nws nyias txheej. Hom epithelium no ua rau muaj kev cuam tshuam tsis zoo. Yog li ntawd lawv nyob rau hauv cov phab ntsa ntawm capillaries, linings ntawm lub pericardium, thiab nyob rau hauv ob sab phlu ntawm lub alveoli ntawm lub ntsws.
Daim duab 01: Squamous Epithelium
Tsis tas li ntawd, lawv pab hauv kev pom thiab zais cov tshuaj lubricating. Stratified squamous epithelium muaj ob peb txheej ntawm ca zoo li lub hlwb. Hom epithelium no kab ntawm txoj hlab pas, qhov ncauj, qhov chaw mos, thiab lwm yam thiab pab tiv thaiv kev puas tsuaj.
Columnar Epithelium yog dab tsi?
Columnar epithelium yog ib qho ntawm peb hom ntawm cov ntaub so ntswg epithelial. Cov hlwb yog siab tshaj qhov dav, thiab lawv yog kab-puab. Ntxiv mus, muaj peb hom columnar epithelium xws li yooj yim columnar epithelium, stratified columnar epithelium, thiab pseudostratified columnar epithelium. Ib qho yooj yim columnar epithelium muaj ib txheej ntawm siab thiab ntim cov hlwb. Lawv muaj nyob rau hauv cov phab ntsa ntawm lub plab thiab cov hnyuv me rau cov secretory thiab absorptive functions.
Daim duab 02: Kab Ntsig Epithelium
Stratified columnar epithelium muaj ob peb txheej ntawm cov hlwb siab dua. Nws yog ib hom tsis tshua muaj cov ntaub so ntswg epithelial. Pseudostratified columnar epithelium muaj ib txheej txheej ntawm tes uas ua yuam kev los ntawm kev pom muaj ob peb txheej hauv ntu ntu. Cells muaj qhov siab sib txawv. Qee lub hlwb muaj plaub hau zoo li txuas ntxiv rau lawv.
Dab tsi yog qhov zoo sib xws ntawm Squamous Epithelium thiab Columnar Epithelium?
- Squamous Epithelium thiab Columnar Epithelium yog hom ntawm cov ntaub so ntswg epithelial.
- Ob hom muaj cov ntaub so ntswg yooj yim thiab stratified epithelial.
- Lawv koom nrog cov haujlwm tseem ceeb hauv peb lub cev.
Qhov txawv ntawm Squamous Epithelium thiab Columnar Epithelium yog dab tsi?
Cov hlwb yog dav dua hauv squamous epithelium. Ntawm qhov tod tes, cov hlwb yog siab dua nyob rau hauv columnar epithelium. Yooj yim squamous thiab stratified squamous yog ob hom squamous epithelium. Ib qho yooj yim columnar, stratified columnar thiab pseudostratified columnar yog peb hom columnar epithelium. Cov nram qab no infographic qhia qhov txawv ntawm squamous epithelium thiab columnar epithelium nyob rau hauv daim ntawv tabular.
Summary – Squamous Epithelium vs Columnar Epithelium
Squamous thiab columnar epithelium yog ob hom ntawm cov ntaub so ntswg epithelial. Squamous epithelium muaj cov hlwb uas dav dua li qhov siab. Columnar epithelium muaj cov hlwb siab dua li qhov dav. Squamous epithelium muaj ob hom thaum columnar epithelium muaj peb hom. Qhov no yog qhov txawv ntawm squamous epithelium thiab columnar epithelium.
