Raws li tau hais los saum toj no, hauv cov neeg laus cov chaw tseem ceeb ntawm cov qe ntshav liab, hu ua erythropoiesis, yog cov pob txha ntawm pob txha, tav, pob txha, thiab pelvis.
Tus txheej txheem ntawm erythropoiesis nyob qhov twg hauv tib neeg lub cev?
Nyob rau hauv tib neeg, cov txheej txheem ntawm erythropoiesis pib pib hauv lub yolk sac, tom qab ntawd hloov mus rau lub siab hauv plab hauv lub hlis thib ob. Tom qab yug me nyuam, erythropoiesis tshwm sim hauv pob txha pob txha.
Cov qe ntshav liab tshwm sim rau cov neeg laus nyob qhov twg?
cov qe ntshav liab (RBC) ntau lawm (erythropoiesis) tshwm sim hauv cov pob txha pob txha nyob rau hauv kev tswj hwm ntawm cov tshuaj hormone erythropoietin (EPO). Juxtaglomerular cells nyob rau hauv lub raum tsim erythropoietin nyob rau hauv cov lus teb rau txo qis oxygen xa (xws li nyob rau hauv anemia thiab hypoxia) los yog nce qib ntawm androgens.
Hemopoiesis tshwm sim rau cov neeg laus nyob qhov twg?
Lawv tsiv mus rau hauv lub siab fetal thiab tom qab ntawd mus rau pob txha pob txha, uas yog qhov chaw rau HSCs hauv cov neeg laus (Cumano thiab Godin, 2007). 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 hematopoiesis nyob rau hauv cov pob txha pob txha thiab thymus.
Lub chaw tseem ceeb ntawm cov ntshav tsim tawm hauv cov neeg laus yog dab tsi?
Nyob rau hauv tib neeg cov neeg laus, pob txha pob txha tsim tag nrho cov qe ntshav liab, 60-70 feem pua ntawm cov qe dawb (piv txwv li, granulocytes), thiab tag nrho cov platelets. Cov ntaub so ntswg lymphatic, tshwj xeeb tshaj yog cov thymus, spleen, thiab cov qog nqaij hlav, tsim cov lymphocytes (suav nrog 20-30 feem pua ntawm cov hlwb dawb).
