Video: Kev tsim cov qe ntshav hu ua dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Ntshav cell tsim , thiab hu ua Hematopoiesis, lossis Hemopoiesis, cov txheej txheem txuas ntxiv uas cov cellular cov neeg sawv cev ntawm ntshav tau ntxiv raws li xav tau. Cov qe ntshav muab faib ua peb pawg: liab cov qe ntshav (erythrocytes), dawb cov qe ntshav (leukocytes), thiab ntshav platelets (thrombocytes).
Tom qab ntawd, cov txheej txheem ntawm kev tsim cov qe ntshav hu ua dab tsi?
Cov txheej txheem ntawm kev ua cov qe ntshav yog hu ua hematopoiesis. Cov qe ntshav yog ua nyob rau hauv cov pob txha pob txha. Cov no ntshav - sib sau qia hlwb tuaj yeem loj hlob mus rau txhua 3 yam ntawm cov qe ntshav - liab hlwb , dawb hlwb thiab platelets.
Tom qab ntawd, lo lus nug yog, qhov tsim cov qe ntshav nyob qhov twg? Hauv kev tsim cov embryos, cov ntshav tsim tshwm sim hauv cov qe ntshav hauv cov qe qe, hu ua cov Islands tuaj. Raws li kev txhim kho zuj zus, kev tsim cov ntshav tshwm sim hauv tus po, daim siab thiab lymph nodes. Thaum pob txha tsim tawm, nws thaum kawg kwv yees txoj haujlwm ntawm kev tsim cov qe ntshav feem ntau rau tag nrho lub cev.
Ntxiv mus, dab tsi yog ntshav tsim?
Hemopoiesis (hematopoiesis) yog txheej txheem uas tsim tawm tsim cov ntsiab lus ntawm ntshav . Hemopoiesis tshwm sim hauv cov pob txha liab pom nyob rau hauv epiphyses ntawm cov pob txha ntev (piv txwv li, humerus thiab femur), cov pob txha tiaj (tav thiab cov pob txha cranial), vertebrae, thiab lub plab.
Cov ntshav ua li cas hauv tib neeg lub cev?
Cov pob txha pob txha tsim tawm qia hlwb, lub tsev blocks uas cov lub cev siv los ua qhov sib txawv ntshav cell - cell liab, dawb cell thiab platelets. Erythropoietin xa xov mus rau cov qia hlwb qhia ntau ntawm lawv kom hloov mus ua liab ntshav cov hlwb, tsis yog cov hlwb dawb lossis platelets.
Pom zoo:
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