Pluripotent qia hlwb rau kev tsim cov qe ntshav, lossis hemopoiesis, tshwm sim hauv cov pob txha ntawm cov menyuam yaus thiab cov neeg laus. … Megakaryocytes, loj polyploid hlwb ntawm cov pob txha liab, tsim cov platelets, los yog thrombocytes, los ntawm kev tso lawv tawm ntawm qhov kawg ntawm cytoplasmic txheej txheem hu ua proplatelets.
txheej txheem ntawm hemopoiesis yog dab tsi?
Cov ntshav tsim tawm, tseem hu ua hematopoiesis lossis hemopoiesis, cov txheej txheem txuas ntxiv uas cov cellular constituents ntawm cov ntshav tau ntxiv raws li xav tau. Cov qe ntshav tau muab faib ua peb pawg: cov qe ntshav liab (erythrocytes), cov qe ntshav dawb (leukocytes), thiab cov ntshav platelets (thrombocytes).
Hematopoiesis tshwm sim li cas?
Tom qab yug los, thiab thaum ntxov thaum yau, hematopoiesis tshwm sim hauv cov pob txha liab. Nrog lub hnub nyoog, hematopoiesis yuav txwv rau pob txha taub hau, sternum, tav, vertebrae, thiab pelvis. Cov pob txha daj, muaj cov rog rog, hloov cov pob txha liab thiab txwv nws lub peev xwm rau hematopoiesis.
Hempoiesis tshwm sim nyob qhov twg?
Nyob rau hauv tib neeg, hematopoiesis pib nyob rau hauv lub yolk sac thiab hloov mus rau hauv daim siab ib ntus ua ntej thaum kawg tsim kom meej meej hematopoiesis nyob rau hauv lub pob txha thiab thymus.
Ntau npaum li cas hematopoiesis tshwm sim?
Cov txheej txheem ntawm kev tsim cov qe ntshav liab yuav siv sijhawm li 2 hnub kom tiav los ntawm cov tsis muaj peev xwm hematopoietic cell mus rau cov qe ntshav liab paub tab. Hauv peb lub cev, muaj 2 lab erythrocytes yog tsim txhua thib ob.
