Video: Dab tsi yog endothelial cells?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Endothelium hais txog hlwb uas ua kab sab hauv ntawm cov hlab ntshav thiab cov hlab ntshav, tsim kom muaj kev sib tshuam ntawm cov ntshav lossis cov qog ntshav hauv lub lumen thiab cov phab ntsa ntawm lub nkoj. Nws yog ib txheej nyias nyias ntawm ib qho yooj yim, lossis ib txheej, squamous hlwb hu ua endothelial hlwb.
Yog li ntawd, cov cell endothelial tsim dab tsi?
Lwm cov haujlwm ntawm endothelial hlwb suav nrog tsim tawm nitrous oxide, ntshav khov, tsim cov hlab ntshav, o, ntshav siab, thiab kev tswj dej. Kev puas tsuaj rau endothelium txheej tuaj yeem ua rau muaj kab mob vascular xws li ntshav siab, ntshav qab zib, kab mob hauv lub plawv, atherosclerosis, sepsis, thiab mob qog noj ntshav.
Qhov thib ob, pes tsawg lub cell endothelial nyob hauv tib neeg lub cev? ib trillion endothelial cells
Ua kom pom qhov no, qhov txawv ntawm epithelial thiab endothelial cells yog dab tsi?
Lub ntsiab qhov sib txawv ntawm epithelial thiab endothelial cells yog li cov kab mob epithelial kab ob sab hauv thiab sab nrauv ntawm lub cev thaum endothelial hlwb kab sab hauv sab hauv ntawm cov khoom siv hauv lub cev. Tab sis, endothelial hlwb yog tsim los ntawm yooj yim squamous epithelium cov ntaub so ntswg.
Dab tsi yog qhov puas ntawm endothelial cell?
Ib qho xwm txheej tshwm sim thiab ntxov hauv kab mob plawv (CVD) tshwm sim thaum twg puas tshwm sim rau vascular endothelium , txheej tuab ntawm hlwb uas kab cov hlab ntsha. Qhov no puas ua rau lub cev ua haujlwm tsis zoo endothelium , tus mob hu ua endothelial tsis ua haujlwm.
Pom zoo:
Dab tsi yog qhov ua haujlwm ntawm endothelial Minivalves hauv cov hlab ntshav qog ntshav?
Dab tsi yog txoj haujlwm ntawm endothelial minivalves hauv cov hlab ntshav qog ntshav? Cov qog ntshav capillaries tshuav lawv cov permeability rau lub mini-li qub tsim los ntawm qhov tsis muaj qhov sib txuas nruj ntawm cov endothelial cells thiab collagen filaments thauj tog rau nkoj endothelial cells rau ib puag ncig cov qauv
Neuroglial cells yog dab tsi thiab lawv lub luag haujlwm yog dab tsi?
Cov hlwb uas tsim myelin, tiv thaiv, txhawb nqa, thiab tswj kev sib npaug hauv koj lub paj hlwb hu ua glial cells. Lawv kuj tseem raug hu ua neuroglia thiab txawm tias yooj yim dua glia. Hauv cov lus ntxaws ntxaws, neuroglia yog cov hlwb hauv koj lub paj hlwb uas tsis yog neurons
Qhov sib txawv ntawm tus pab T cells thiab cytotoxic T cells yog dab tsi?
T hlwb yog li ntawd hu ua vim lawv feem ntau tsim nyob rau hauv lub thymus. Raws li cov npe hais tias pab T hlwb 'pab' lwm lub hlwb ntawm lub cev tiv thaiv kab mob, thaum cytotoxic T hlwb tua cov kab mob kis kab mob thiab qog. Tsis zoo li cov tshuaj tiv thaiv kab mob, TCR tsis tuaj yeem khi cov tshuaj tiv thaiv ncaj qha
Lub luag haujlwm ntawm T cells thiab B cells yog dab tsi?
T cells koom nrog hauv kev tiv thaiv kab mob ntawm tes, qhov B hlwb feem ntau yog lub luag haujlwm rau kev tiv thaiv kev dag ntxias (hais txog cov tshuaj tiv thaiv). Kev ua haujlwm ntawm T hlwb thiab B hlwb yog kom paub txog cov 'tsis yog tus kheej' antigens, thaum lub sijhawm ua haujlwm hu ua antigen nthuav qhia
Dab tsi yog ependymal cells thiab lawv ua dab tsi?
Ependymal Cell. Ependymal cells yog ib hom tshwj xeeb ntawm cov epithelial cells uas ua kab ke ntawm lub paj hlwb ntawm lub paj hlwb thiab ua lub luag haujlwm tseem ceeb hauv kev tsim cov kua dej hauv lub paj hlwb