2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Thrombin hloov Fibrinogen → Fibrin, tsim "_clot." Fibrin tsim cov ntaub ntawv polymers (ntau ntxiv ntawm qhov no los tom ntej). Nws yog cov khoom siv coagulation, thiab lub hom phiaj ntawm coagulation cascade. Activates Factor VIII → VIIIa rau siv rau hauv txoj kev nkag siab (pib hauv qab).
Dab tsi ua rau thrombin qhib thaum lub sijhawm coagulation?
Activated thrombin ua rau txhawm rau tshem tawm ntawm fibrinogen rau hauv fibrin monomersuas, thaum polymerization, tsim cov fibrin clot. Yog li, kev ua kom prothrombin yog qhov tseem ceeb hauv lub cev thiab cov kab mob pathophysiological coagulation.
Dab tsi ua kom thrombin los ntawm prothrombin?
Thrombin yog tsim los ntawm cov enzymatic cleavage ntawm ob qhov chaw ntawm prothrombin los ntawm activated Factor X (Xa). Cov kev ua ntawm Factor Xa tau zoo heev los ntawm kev khi rau activated Factor V (Va), hu ua prothrombinase complex.
Cov coagulation ua haujlwm li cas?
Txoj kev sib cuag ntawm coagulation yog pib los ntawm ua kom muaj txiaj ntsig XII (fXII) hauv cov txheej txheem uas tseem cuam tshuam nrog cov qib siab molecular-yuag kininogen (HK) thiab plasma prekallikrein (PK.).
Lub luag haujlwm ntawm thrombin hauv cov ntshav txhaws yog dab tsi?
thrombin hloov fibrinogen rau fibrin. 5. Factor XIIIa nkoos tsim ntawm insoluble fibrin clot.
Pom zoo:
Yuav tsum muaj lus nug rhetorical muaj cov lus nug?
Cov lus nug zoo li no, uas tsis xav tau lossis xav tau cov lus teb, yog hu ua cov lus nug rhetorical. Vim lawv yog cov lus nug nyob rau hauv daim ntawv xwb, cov lus nug rhetorical tej zaum yuav sau yam tsis muaj lo lus nug cim. Cov lus nug rhetorical tau txais cov lus nug?
Thaum twg ib qho enzyme catalyses cov lus nug cov lus nug?
Enzymes catalyze cov tshuaj tiv thaiv los ntawm txo qis lub zog ua kom tsim nyog rau qhov tshwm sim. Lub molecule uas ib qho enzyme ua rau yog hu ua substrate. Hauv cov tshuaj tiv thaiv enzyme-mediated, substrate molecules raug hloov, thiab cov khoom tsim.
Lub sijhawm kuv lub sijhawm dawb lossis thaum kuv lub sijhawm dawb?
yog li, qhov no txhais tau tias "thaum kuv lub sijhawm dawb" tsis siv ntauthiab koj muab "hauv kuv lub sijhawm dawb" ntau dua nyob rau qhov kawg ntawm kab lus. Piv txwv li: Kuv tau taug kev tus dev thaum kuv lub sijhawm dawb.
Vim li cas thiaj nug cov tub ntxhais kawm cov lus nug qhib?
Ib txoj hauv kev ua tau zoo yog los ntawm kev nug cov lus nug qhib-cov uas tsis muaj ib lo lus raug lossis tsis yog. Hloov cov lus teb uas xav tau, cov lus nug qhib-kawg relicit tshiab thiab qee zaum txawm tias pib kev nkag siab thiab cov tswv yim, qhib siab thiab ua rau cov kws qhia ntawv thiab cov tub ntxhais kawm tsim kev paub ua ke.
Koj puas nug cov lus nug qhib?
Cov lus nug qhib yog cov lus nug uas tsis tuaj yeem teb nrogyooj yim 'yog' lossis 'tsis yog', thiab hloov pauv xav kom tus neeg teb piav qhia txog lawv cov ntsiab lus. Cov lus nug qhib kawg pab koj pom tej yam ntawm tus neeg siv khoom qhov kev xav thaum koj tau txais cov lus teb hauv lawv cov lus tsis yog cov lus teb hauv Tshuag.
