2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Langerhans cells (LCs) yog muab los ntawm haematopoietic precursor cells uas nyob hauv daim tawv nqaij los ntawm kev loj hlob ntawm embryonic 44. LC txoj kev loj hlob nyob ntawm ib qho chaw autocrine ntawm kev hloov pauv kev loj hlob-β1 (TGFβ1) 66 thiab ntawm macrophage colony-stimulating factor receptor (M-CSFR) ligands 9.
Puas yog Langerhans hlwb muab tau los ntawm cov pob txha?
nrhiav tsis ntev los no. Langerhans hlwb (LCs) pib ua ntej yug me nyuam thiab yuav muaj sia nyob thoob plaws lub neej, ntawm nws tus kheej ntawm pob txha pob txha muab tau ua ntej.
Langerhans hlwb migrate li cas?
Epidermal Langerhans hlwb (LC) ua lub luag haujlwm tseem ceeb hauv kev ua kom lub cev tiv thaiv kab mob. Sib ntsib nrog antigen hauv daim tawv nqaij, lossis lwm yam stimuli, ua rau kev txav chaw ntawm LC thiab lawv txoj kev tsiv teb tsaws, ntawm cov kab mob qog noj ntshav, ua rau cov qog ntshav ntws mus rau qhov chaw uas lawv nyob hauv paracortex.
Lub cev twg muaj Langerhans?
Islets ntawm Langerhans, tseem hu ua cov Islands tuaj ntawm Langerhans, tsis xwm yeem zoo li thaj tsam ntawm cov ntaub so ntswg endocrine nyob hauv tus txiav txiav ntawm feem ntau vertebrates. Lawv tau muab npe rau tus kws kho mob German Paul Langerhans, uas tau piav qhia thawj zaug hauv xyoo 1869. Cov tib neeg lub cev ib txwm muaj txog 1 lab islets.
LCH puas muaj kev phom sij?
Qhov kev cia siab rau cov menyuam yaus nrog LCH feem ntau zoo heev. Tus kab mob no tsis tshua muaj kev phom sij. Txawm li cas los xij, qee qhov LCHCov neeg muaj txoj sia nyob muaj kev cuam tshuam mus ntev, xws li kev xiam oob khab orthopedic, hnov lus tsis zoo, ntshav qab zib insipidus, thiab daim tawv nqaij caws pliav.
Pom zoo:
Qhov paj hlwb nruab nrab nyob qhov twg?
Cov paj hlwb nruab nrab yog lub paj hlwb thiab lub cev muaj zog ntawm caj npab (lossis sab sauv). Nws tshwm sim los ntawm lateral thiab medial qaum ntawm lub brachial plexus, originating nyob rau hauv tus txha caj qaum, thiab khiav los ntawm anterior feem ntawm caj npab thiab forearm ua ntej ua tiav nws txoj kev ntawm tes thiab tus lej (ntiv tes).
Qhov twg yog qhov tseeb ntawm cov qia hlwb tsis muaj zog?
Unipotent - Unipotent qia hlwb ua rau cov hlwb ntawm lawv tus kheej hom raws li ib hom kab mob. Yog li ntawd, unipotent qia hlwb muaj qhov sib txawv tsawg tshaj plaws piv rau lwm hom qia hlwb. Cov tawv nqaij yog ib qho piv txwv zoo ntawm cov qia hlwb tsis muaj zog.
Qhov teeb meem grey thiab dawb nyob rau hauv lub hlwb nyob qhov twg?
Cerebral cortex - Txheej txheej ntawm lub hlwb, lub paj hlwb cortex, muaj cov kab ntawm grey teeb meem neurons, nrog cov teeb meem dawb nyob hauv qab. Qhov chaw no yog qhov tseem ceeb rau ntau qhov kev kawm siab dua, suav nrog kev mloog, kev nco, thiab kev xav.
Puas yog mesenchymal hlwb osteogenic hlwb?
Mesenchymal qia hlwb cog lus rau osteogenic kab thiab sib txawv rau hauv cov laus osteoblasts thiab osteocytes osteocytes Osteocytes yog cov hlwb nyob hauv cov pob txha nws tus kheej thiab yog 'entrapped' osteoblasts . Lawv yog cov post-proliferative, sawv cev rau cov neeg paub tab sib txawv tshaj plaws ntawm cov kab mob osteoblast.
Lub hlwb puas hlwb nyob qhov twg?
A retinal ganglion cell (RGC) yog ib hom neuron nyob ze rau sab hauv (lub ganglion cell txheej) ntawm retina ntawm lub qhov muag. Nws tau txais cov ntaub ntawv pom los ntawm photoreceptors ntawm ob hom neuron nruab nrab: cov hlwb bipolar thiab amacrine cells.
