Video: Dab tsi yog qhov yooj yim columnar epithelium zoo li?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Yooj yim columnar epithelium muaj ib txheej ntawm cov cell uas yog siab tshaj lawv yog 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 epithelium yog kuj nyob rau hauv lub plab qhov twg nws secretes acid, digestive enzymes thiab mucous.
Xav txog qhov no, dab tsi yog qhov yooj yim columnar epithelium muaj nuj nqi?
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. Columnar epithelial cell yog epithelial cov hlwb uas nws qhov siab tsawg kawg yog plaub npaug ntawm lawv qhov dav.
Qhov thib ob, qhov yooj yim squamous epithelium zoo li cas? Yooj yim squamous epithelia tau pom hauv cov hlab ntshav, alveoli, glomeruli, thiab lwm cov ntaub so ntswg uas xav tau kev nthuav tawm sai. Cells yog tiaj nrog flattened thiab oblong nuclei. Nws tseem hu ua pavement epithelium cov ntaub so ntswg vim nws cov pobzeb- nyiam tsos. Cov ntaub so ntswg yog qhov hnyav heev, thiab tsim cov kab me me.
Kuj nug, qhov twg yog qhov yooj yim columnar epithelium pom?
Yooj yim columnar epithelia muaj nyob hauv plab , cov hnyuv , txoj hnyuv loj , lub qhov quav, cov hlab ntsha hauv plab, endometrium, thiab ua pa bronchioles. Hauv qhov tseem ceeb, lawv pom nyob hauv ib feem ntawm txoj kev ua pa, plab thiab cov kab mob me me uas cov tshuab ua kom puas tsawg, tab sis kev zais cia thiab kev nqus yog qhov tseem ceeb.
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 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
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