Cov txheej txheem:
- Dendritic hlwb nyob qhov twg ntau tshaj?
- Dab tsi yog cov txheej txheem dendritic pom?
- Puas yog cov hlwb dendritic pom feem ntau hauv cov qog ntshav?
- Dendritic cells ua haujlwm li cas?
Video: Pom cov hlwb dendritic nyob qhov twg?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Dendritic hlwb muaj nyob rau hauv cov ntaub so ntswg uas muaj kev sib cuag nrog sab nraud ib puag ncig xws li hla ntawm daim tawv nqaij (tam sim no li Langerhans hlwb) thiab hauv ob sab phlu ntawm lub qhov ntswg, ntsws, plab thiab hnyuv. Cov ntawv tsis paub tab kuj pom muaj nyob hauv cov ntshav.
Dendritic hlwb nyob qhov twg ntau tshaj?
Dendritic cells (DCs), ua ke nrog monocytes thiab macrophages, suav nrog cov kab ke mononuclear phagocyte. DCs yog cov kws tshaj lij antigen-presenting cells. Lawv muaj ntau heev ntawm lub cev thiab hauv cov ntaub so ntswg, qhov chaw lawv nkag siab thiab ua piv txwv ib puag ncig rau tus kheej-thiab tsis-tus kheej-antigens.
Dab tsi yog cov txheej txheem dendritic pom?
Cov hlwb no nyob hauv txheej suprabasal ntawm cov epidermis, thiab muaj cov qib siab ntawm CDla ntawm lawv cov txheej txheem dendritic, thiab muaj Birbeck granules.
Puas yog cov hlwb dendritic pom feem ntau hauv cov qog ntshav?
Lawv tam sim no yog cov hlwb 'tsis paub qab hau' hauv cov ntaub so ntswg, tshwj xeeb yog cov ntaub so ntswg uas raug rau sab nraud, suav nrog daim tawv nqaij, ntsws thiab txoj hnyuv. Lawv kuj muaj nyob rau hauv cov ntaub so ntswg lymphoid, suav nrog cov qog ntshav thiab spleen.
Dendritic cells ua haujlwm li cas?
Dendritic cells (DCs) sawv cev rau tsev neeg heterogeneous ntawm lub cev tiv thaiv kab mob uas txuas rau hauv lub cev thiab kev tiv thaiv kab mob. Lub luag haujlwm tseem ceeb ntawm cov hlwb innate no yog txhawm rau ntes, txheej txheem, thiab tam sim no antigens rau hloov lub cev tiv thaiv kab mob thiab kho lawv cov polarization rau hauv cov cell effector(1).
Pom zoo:
Koj yuav pom qhov twg ntau tshaj plaws ntawm cov hlwb tsis sib xws hauv cov nroj tsuag?
Cov qia hlwb yog cov hlwb tsis sib xws nyob hauv cov meristems ntawm cov nroj tsuag . Cov hlwb tsis sib txawv nyob qhov twg hauv cov nroj tsuag? Cov qia hlwb yog innately undifferentiated hlwb nyob rau hauv the meristems ntawm cov nroj tsuag.
Cov hlwb stratum basale pom nyob qhov twg?
Lub stratum basale yog ib kab ntawm columnar lossis cuboidal cells resting ntawm thaj chaw hauv qab daus uas cais cov epidermis ntawm lub dermis (saib daim duab 1-5). Feem ntau ntawm cov hlwb no yog keratinocytes uas pheej rov tsim dua thiab thawb nce mus ntxiv rau cov hlwb epidermal saum toj no .
Hiv puas tuaj yeem kis tau cov hlwb dendritic?
Txawm hais tias lub hom phiaj tseem ceeb ntawm tus kab mob HIV yog CD4+ T hlwb, dendritic cells (DC) sawv cev rau tseem ceeb subsethauv kev kis kab mob HIV vim lawv cuam tshuam kev kis tus kab mob, lub hom phiaj kab mob ntawm tes thiab antigen.
Dab tsi yog qhov txawv ntawm kev pom tsis pom thiab pom tsis pom ntau dua?
Kev muaj peev xwm tawm tsam yam tsis muaj qhov kawg ntawm kev sau ntawv vs kev tuaj yeem cuam tshuam rau lwm tus neeg kuj yog qhov sib txawv. Qhov tseem ceeb Invisibility yog "qhov tseeb nrhiav / nkaum / mus ncig tsis pom" qhov twg Qhov Kev Pom Zoo Tshaj Plaws yog ntau ntawm kev sib ntaus sib tua Puas pom qhov tsis pom kev ua haujlwm ntawm kev pom tsis pom ntau dua?
Cov hlwb dendritic feem ntau pom nyob qhov twg?
Dendritic hlwb muaj nyob rau hauv cov ntaub so ntswg uas muaj kev sib cuag nrog sab nraud ib puag ncig xws li hla ntawm daim tawv nqaij (tam sim no li Langerhans hlwb) thiab hauv ob sab phlu ntawm lub qhov ntswg, ntsws, plab thiab hnyuv. Cov ntawv tsis paub tab kuj pom muaj nyob hauv cov ntshav .
