Qhov sib txawv tseem ceeb ntawm txoj hlab pas thiab lub plab hnyuv yog qhov esophageal epithelium yog non-keratinized stratified squamous epithelium thaum lub plab epithelium yog ib qho yooj yim columnar epithelium.
Epithelium yog ib qho ntawm plaub hom tsiaj cov ntaub so ntswg. Nws tsim cov npog ntawm txhua qhov chaw ntawm lub cev thiab kab cov kab noj hniav thiab lub cev kab noj hniav. Esophagus yog ib feem ntawm cov kwj dej alimentary thiab txuas lub caj pas mus rau lub plab. Nws yog lined los ntawm ib tug stratified squamous epithelium. Gastric mucosa yog txheej txheej sab hauv ntawm lub plab. Qhov saum npoo ntawm lub plab mucosa yog kab los ntawm ib qho yooj yim columnar epithelium. Yog li ntawd, gastric epithelium yog ib txheej ntawm columnar hlwb.
YEsophageal Epithelium yog dab tsi?
Txoj hlab ntaws yog ib txoj hlab leeg uas txuas lub caj pas thiab lub plab. Nws yog ib qho yooj yim raj thiab ib feem ntawm peb cov kwj dej kais dej. Esophagus yog lined los ntawm cov ntaub so ntswg epithelial. Esophagus epithelium yog stratified squamous epithelium. Muaj cov qog nqaij hlav submucosal tawg nyob rau hauv txoj hlab pas epithelium. Lawv muab lubrication rau txoj hlab pas. Feem ntau, esophagus epithelium tsis raug rau dryness los yog abrasion. Li no, nws yog non-keratinized.
Daim duab 01: Esophageal Epithelium thiab Esophageal Cancer
Esophageal epithelium muab kev tiv thaiv tawm tsam txawv teb chaws antigens. Qhov chaw ntawm lub epithelium yog sib sib zog nqus indented los ntawm connective cov ntaub so ntswg papillae. Tsis tas li ntawd, kev ua txhaum cai ntawm txoj hlab pas ntawm cov hlab ntsha tuaj yeem ua rau muaj kab mob esophageal. Nyob ze ntawm lub plawv orifice los yog ntawm qhov sib txuas ntawm lub plab, esophageal epithelium, uas yog ib qho stratified squamous epithelium, yuav siv sij hawm ib qho kev hloov mus rau qhov yooj yim columnar epithelium.
YNpaj Epithelium yog dab tsi?
Gastric mucosa yog txheej sab hauv ntawm lub plab. Qhov chaw ntawm lub mucous daim nyias nyias yog them los ntawm gastric epithelium. Gastric epithelium yog ib txheej ntawm columnar epithelium, yog li nws yog ib qho yooj yim columnar epithelium. Hauv qab ntawm lub plab epithelium, muaj cov qog nqaij hlav zoo sib xws. Lub plab epithelium yog indented rau hauv ntau lub plab plab me me los yog me me invaginations. Cov ntau me me invaginations tshwm sim li tsheej lab ntawm cov qhov hauv plab hnyuv. Lawv kuj tseem txuas nrog rau ntau yam kab mob hauv lub plab thiab tso cai rau cov khoom glandular xa mus rau hauv lub plab lumen. Muaj kwv yees li 90 mus rau 100 lub plab hnyuv ib square millimeter ntawm gastric epithelium.
Daim duab 02: Gastric Epithelium
Lub plab hnyuv ib txwm npog los ntawm txheej mucous. Lub plab epithelium secretes ib qho alkaline, viscous mucous nyob rau hauv thiaj li yuav lubricate zaub mov thiab pab txhawb kev txav ntawm cov zaub mov raws GI ib ntsuj av.
Dab tsi zoo sib xws ntawm Esophageal thiab Gastric Epithelium?
- Esophageal thiab gastric epithelia yog ob hom epithelia uas kab sab hauv sab hauv ntawm cov khoom noj khoom haus.
- YEsophageal epithelium siv kev hloov pauv mus rau qhov yooj yim columnar epithelium ntawm qhov sib txuas ntawm lub plab.
- Kev hloov ntawm esophageal epithelium mus rau hauv lub plab epithelium yog pom raws li ib tug zig-zag kab.
- Muaj ntau cov qog nqaij hlav hauv ob lub epithelia.
Qhov txawv ntawm Esophageal thiab Gastric Epithelium yog dab tsi?
Y Esophageal epithelium yog ib qho stratified squamous epithelium nyob ib ncig ntawm peb txheej ntawm squamous hlwb thaum lub plab epithelium yog ib txheej ntawm columnar hlwb. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm esophageal thiab gastric epithelium.
Hauv qab infographic qhia ntau cov ntsiab lus ntawm qhov sib txawv ntawm txoj hlab pas thiab plab hnyuv epithelium.
Summary – Esophageal vs Gastric Epithelium
YEsophageal epithelium yog ib qho uas tsis yog-keratinized stratified squamous epithelium. Nyob rau hauv sib piv, gastric epithelium los yog lub plab epithelium yog ib tug yooj yim columnar epithelium. Yog li ntawd, muaj ntau lub cell txheej nyob rau hauv lub esophageal epithelium thaum muaj ib tug cell txheej nyob rau hauv lub gastric epithelium. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm esophageal thiab gastric epithelium.
