Video: Yam twg txhawb kev tsim cov platelet?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Megakaryocyte kev loj hlob thiab kev loj hlob yam tswj platelet ntau lawm thiab ua haujlwm los ntawm txhawb endoreduplication thiab megakaryocyte tsim los ntawm cov hlwb progenitor hlwb, thiab ua kom zoo dua qub platelet cov lus teb ua haujlwm ex vivo.
Kuj paub yog, platelet tsim tau li cas?
Platelets yog tsim los ntawm cov pob txha loj heev hu ua megakaryocytes. Raws li megakaryocytes tsim mus rau hauv cov hlwb loj, lawv tau ua cov txheej txheem ntawm kev faib ua feem uas ua rau tso tawm ntau dua 1,000, platelets rau megakaryocyte.
Kuj Paub, dab tsi ua rau erythropoietin tso tawm? Cov ntawv luv: EPO Cov hlwb no tso erythropoietin thaum cov pa oxygen tsawg hauv lub raum. Erythropoietin txhawb cov pob txha ua kom tsim cov qe ntshav liab ntau ntxiv uas ua rau kom muaj peev xwm ua pa ntawm cov ntshav.
Yog li ntawd, dab tsi yog platelets thiab lawv tsim li cas?
Platelets tau tsim thaum lub sijhawm hematopoiesis hauv cov txheej txheem hu ua thromopoiesis, lossis tsim tawm ntawm thrombocytes. Thrombopoiesis tshwm sim los ntawm cov kab mob myeloid progenitor hauv cov pob txha pob txha, uas sib txawv rau hauv promegakaryocytes thiab tom qab ntawd mus rau hauv megakaryocytes.
Lub sijhawm xwm txheej twg ntawm hemostasis ua rau cov ntshav khov?
Hemostasis yog cov txheej txheem physiological uas los ntshav ceases. Hemostasis koom nrog peb theem pib: vascular spasm, tsim cov platelet plug, thiab coagulation , koj coagulation yam txhawb kev tsim cov fibrin clot . Fibrinolysis yog txheej txheem uas a clot yog degraded nyob rau hauv lub nkoj kho.
Pom zoo:
Kev sib raug zoo ntawm kev txhawb nqa lub sijhawm thiab kev txhawb zog siab yog dab tsi?
Kev sib raug zoo ntawm kev txhawb nqa lub sijhawm thiab qhov dav tam sim no Tus nqi yog cov khoom lag luam ntawm qhov dav thiab ntev. Yog li yog tias lub sijhawm ntev ob npaug, koj yuav xav tau tsuas yog ib nrab ntawm qhov tam sim no kom coj daim nyias nyias mus rau qhov pib vim tias qhov me me tam sim no nyob rau qhov kev txhawb zog ntev dua muaj lub sijhawm los them rau daim nyias nyias
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Puas yog kev txhawb siab txhawb siab ua rau cov kua qaub?
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