Qhov sib txawv tseem ceeb ntawm keratinocytes thiab corneocytes yog keratinocytes yog cov nyob hauv hlwb uas tsim keratin thiab sib txawv rau hauv corneocytes thaum corneocytes yog qhov sib txawv ntawm keratinocytes uas yog cov hlwb tuag uas muaj cov protein ntau keratin.
Muaj ntau txheej txheej ntawm tes hauv daim tawv nqaij. Lawv yog stratum basale, stratum spinosum, stratum granulosum, stratum lucidum thiab stratum corneum. Stratum corneum yog txheej txheej ntawm daim tawv nqaij, thiab nws yog ib daim ntawv uas muaj corneocytes. Corneocytes yog cov hlwb sab nraud, uas yog cov hlwb tuag uas muaj keratin. Keratinocytes yog cov hlwb uas sib txawv rau hauv corneocytes. Keratinocytes yog tsim nyob rau hauv lub basal txheej ntawm lub cell, thiab lawv yog cov loj cell hom ntawm epidermis. Cov no yog cov hlwb nyob, thiab lawv tsim cov protein keratin.
YKeratinocytes yog dab tsi?
Keratinocytes yog hom cell ntawm cov epidermis. Lawv pom nyob rau hauv qis txheej ntawm lub epidermis. Cov hlwb no yog cov hlwb nyob; Yog li ntawd, lawv yog metabolically active. Lawv muaj cov cell nucleus thiab lwm cov cell organelles. Lub luag haujlwm tseem ceeb ntawm keratinocytes yog tsim cov keratin protein. Ntxiv mus, keratinocytes ua ntau lwm cov proteins.
Daim duab 01: Keratinocytes
Thaum keratinocytes paub tab thiab tsiv mus rau sab nraud, lawv tau hloov ntau yam. Thaum kawg, lawv sib txawv rau hauv corneocytes. Lawv poob lawv cov nucleus thiab cytoplasm. Lawv lub hnab ntawv ntawm tes yuav ua tau ntev dua. Thaum kawg, lawv hloov mus rau hauv cov tawv nqaij qhuav qhuav hu ua corneocytes. Keratinocytes yog tsim los ntawm cov qia hlwb hauv stratum basale.
Corneocytes yog dab tsi?
Corneocytes, tseem hu ua squames, yog qhov sib txawv ntawm keratinocytes. Thaum hloov keratinocytes rau hauv corneocytes, poob ntawm cell nucleus thiab organelles tshwm sim. Lawv cov metabolism tsis ua haujlwm. Yog li ntawd, corneocytes yog cov hlwb tuag, tsis zoo li keratinocytes. Ntxiv mus, keratins aggregate nyob rau hauv lub corneocytes thiab maj mam sau nrog keratin.
Daim duab 02: Epidermis
Thaum xav txog qhov hnyav qhuav ntawm corneocytes, ntau dua 80% yog nyob ntawm keratin. Cov hlwb yog kwv yees li 30 µm inch thiab 0.3 µm tuab. Corneocytes qhia cov duab zoo li disc, thiab lawv muaj thaj tsam loj hauv kab rov tav. Corneocytes, ua ke nrog cov lipid intercellular, tsim ib daim ntawv txuas ntxiv ntawm corneocytes hu ua stratum corneum. Nws yog txheej txheej sab nraud ntawm daim tawv nqaij, thiab nws ua raws li kev tiv thaiv kev tiv thaiv los yog thawj qhov thaiv ntawm lub cev thiab ib puag ncig. Lub neej ntev ntawm lub pob kws yog li ob mus rau peb lub lis piam.
Dab tsi zoo sib xws ntawm Keratinocytes thiab Corneocytes?
- Keratinocytes thiab corneocytes yog ob hom hlwb pom hauv peb daim tawv nqaij.
- Keratinocytes tsim corneocytes thaum loj hlob upright.
- Lawv ua ib qho kev tiv thaiv tiv thaiv cov khoom phem hauv ib puag ncig.
Qhov txawv ntawm Keratinocytes thiab Corneocytes yog dab tsi?
Keratinocytes yog cov hlwb nyob, thaum corneocytes yog cov hlwb tuag. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm keratinocytes thiab corneocytes. Corneocytes tsim los ntawm keratinocytes. Keratinocytes pom nyob rau hauv lub basal txheej ntawm lub epidermis thaum corneocytes pom nyob rau hauv lub txheej txheej ntawm lub epidermis. Ntxiv mus, keratinocytes muaj ib tug nucleus thiab cytoplasm thaum corneocytes tsis muaj ib tug nucleus thiab cytoplasm. Cov qia hlwb hauv stratum tsim keratinocytes thaum keratinocytes tsim corneocytes.
Cov duab hauv qab no qhia ntau qhov kev sib piv ntsig txog qhov sib txawv ntawm keratinocytes thiab corneocytes.
Summary – Keratinocytes vs Corneocytes
Keratinocytes thiab corneocytes yog ob hom hlwb pom nyob rau hauv daim tawv nqaij. Keratinocytes yog cov hlwb uas tsim cov keratin protein. Lawv kuj pom nyob rau hauv lub basal txheej ntawm lub epidermis. Nyob rau hauv sib piv, corneocytes yog terminally txawv keratinocytes uas muaj nyob rau hauv lub stratum corneum. Lawv yog flattened hlwb uas muaj ib tug loj deg cheeb tsam. Ntxiv mus, lawv yog cov tuag hlwb uas muaj keratin. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm keratinocytes thiab corneocytes.
