Video: Qhov yooj yim columnar epithelium secrete yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Yooj yim columnar epithelium suav nrog ib txheej ntawm cov cell uas siab dua li lawv dav. Hom kab mob epithelia no yog txoj hnyuv me uas nws nqus cov khoom noj los ntawm lumen ntawm txoj hnyuv. Yooj yim columnar epithelia kuj nyob rau hauv lub plab uas nws zais cia acid, digestive enzymes thiab mucous.
Hauv qhov no, dab tsi yog qhov ua haujlwm ntawm kab ntawv yooj yim epithelium?
Yooj yim columnar epithelia nrog microvilli zais cov zom zaub mov thiab nqus cov zaub mov zom zom. Yooj yim columnar epithelia nrog kev pab cilia hauv kev txav ntawm cov hnoos qeev thiab cov qe menyuam. Columnar epithelial cell yog epithelial cov hlwb uas nws qhov siab tsawg kawg yog plaub npaug ntawm lawv qhov dav.
Ib tug kuj yuav nug, dab tsi yooj yim columnar epithelium zoo li? Sab hauv ntawm lub plab hnyuv phab ntsa yog ua los ntawm yooj yim columnar epithelium (ceg). Es tsis txhob ua kom du, sab hauv ntawm txoj hnyuv yog folded thiab them los ntawm ntau lab tus me me projections hu ua villi. Koj tuaj yeem pom dab tsi zoo li puag ncig cov npuas dawb hauv epithelium cov ntaub so ntswg . Cov no yog goblet hlwb thiab lawv secrete mucus.
Yog li ntawd, dab tsi yog qhov yooj yim columnar epithelial cov ntaub so ntswg?
A yooj yim columnar epithelium yog a columnar epithelium uas yog uni-layered. Hauv tib neeg, a yooj yim columnar epithelium kab feem ntau ntawm lub cev zom zaub mov suav nrog lub plab, hnyuv me, thiab hnyuv loj. Yooj yim columnar epithelia kab lub tsev menyuam.
Cov qauv ntawm columnar epithelium yog dab tsi?
Columnar Epithelia Goblet cells zais cov hnoos qeev rau hauv txoj hnyuv lumen. Columnar epithelial cov cell siab dua li lawv dav: lawv zoo ib yam li ib pawg ntawm kab hauv ib qho epithelial txheej, thiab feem ntau pom muaj nyob hauv ib txheej txheej.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm squamous yooj yim thiab yooj yim cuboidal thiab columnar yooj yim?
Piv txwv li, yooj yim squamous epithelial cov ntaub so ntswg piav qhia ib txheej ntawm cov cell uas tiaj thiab nplai zoo li cov duab. Cuboidal epithelium muaj cov cell uas nws qhov siab thiab dav yog kwv yees tib yam. Columnar epithelium muaj cov cell siab dua li lawv dav
Dab tsi yog qhov piav qhia ntawm yooj yim columnar epithelium?
Ib qho yooj yim columnar epithelium yog columnar epithelium uas yog uni-layered. Nyob rau hauv tib neeg, ib qho yooj yim columnar epithelium kab feem ntau cov kab mob ntawm lub plab zom mov nrog rau lub plab, hnyuv me, thiab txoj hnyuv loj. Yooj yim columnar epithelia kab ntawm lub tsev menyuam
Qhov yooj yim columnar epithelium muaj nuj nqi nyob qhov twg?
Ib qho yooj yim columnar epithelium muaj ib txheej ntawm cov hlwb uas siab tshaj qhov dav. Hom kab mob epithelia no yog txoj hnyuv me uas nws nqus cov khoom noj los ntawm lumen ntawm txoj hnyuv. Yooj yim columnar epithelia kuj tseem nyob hauv plab uas nws zais cov kua qaub, zom zaub mov zom zaub mov thiab hnoos qeev
Dab tsi yog qhov yooj yim columnar epithelium zoo li?
Ib qho yooj yim columnar epithelium muaj ib txheej ntawm cov hlwb uas siab tshaj qhov dav. Hom kab mob epithelia no yog txoj hnyuv me uas nws nqus cov khoom noj los ntawm lumen ntawm txoj hnyuv. Yooj yim columnar epithelia kuj tseem nyob hauv plab uas nws zais cov kua qaub, zom zaub mov zom zaub mov thiab hnoos qeev
Cov qog epithelium sib txawv li cas los ntawm epithelium yooj yim thiab stratified?
Qhov sib txawv loj tshaj plaws ntawm cov ntaub so ntswg yooj yim thiab stratified yog cov ntaub so ntswg yooj yim yog ib txheej tuab thaum cov ntaub so ntswg stratified yog ntau txheej. Txhua cov ntaub so ntswg epithelial nyob ntawm lub hauv qab daim nyias nyias, uas yog daim nyias nyias tiv thaiv nyob rau sab nraud ntawm cov ntaub so ntswg