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Video: Dab tsi yog qhov piav qhia ntawm yooj yim columnar epithelium?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
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 ntawm lub tsev menyuam.
Ib yam li ntawd, tib neeg nug, dab tsi yog qhov ua haujlwm ntawm kab ntawv yooj yim epithelium?
Piav qhia: 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. Kab mob epithelial cell yog epithelial cov hlwb uas nws qhov siab tsawg kawg yog plaub npaug ntawm lawv qhov dav.
Qhov thib ob, dab tsi yooj yim columnar epithelium nqus? Yooj yim columnar epithelial hlwb nqus cov khoom los ntawm lub plab zom mov. 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.
Tsis tas li ntawd, dab tsi yog cov yam ntxwv ntawm yooj yim columnar epithelium?
Yooj yim columnar epithelium muaj ib txheej ntawm hlwb uas siab dua 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 tseem nyob hauv plab uas nws zais cov kua qaub, zom zaub mov zom zaub mov thiab hnoos qeev.
Dab tsi yog cov yam ntxwv tseem ceeb ntawm cov ntaub so ntswg epithelial?
Cov ntaub so ntswg epithelial muaj tsib yam ntxwv tseem ceeb
- Polarity - tag nrho cov epithelia muaj ib tug apical nto thiab ib tug qis txuas basal nto uas txawv nyob rau hauv cov qauv thiab kev ua hauj lwm.
- Cov kev sib cuag tshwj xeeb - cov kab mob epithelial haum nyob ze ua ke thiab tsim cov nplooj ntawv txuas ntxiv (tshwj tsis yog hauv cov kab mob glandular epithelia).
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
Qhov yooj yim columnar epithelium secrete yog dab tsi?
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
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