Qhov sib txawv tseem ceeb ntawm platelet plug thiab ntshav txhaws yog lub platelet ntsaws yog qhov thaiv ib ntus kom kaw qhov kev raug mob thaum cov ntshav txhaws yog qhov ruaj khov rau qhov raug mob kom txog thaum nws kho.
Platelets lossis thromboytes yog cov khoom me me thiab tsis muaj xim pom hauv cov ntshav. Platelets tsis muaj nucleus thiab yog muab los ntawm cov pob txha pob txha. Lawv pom tsuas yog nyob rau hauv cov tsiaj. Platelets pab thaum pib ntawm cov ntshav txhaws los ntawm kev ua rau cov hlab ntsha puas lossis raug mob. Platelet plugs thiab ntshav txhaws pab tiv thaiv kom tsis txhob los ntshav ntau hauv lub cev. Thaum xub thawj, platelets txuas rau cov khoom nyob rau hauv lub puas endothelium nto los ntawm adhesion. Tom qab ntawd platelets qhib los ntawm kev xa cov receptors, hloov cov duab, thiab zais cov neeg xa xov chemical. Tom qab ntawd platelets txuas thiab sib sau los ntawm receptor txuas hniav. Platelet plugs yog txuam nrog kev ua kom cov coagulation cascade, thiab vim li ntawd, fibrin deposition tshwm sim. Qhov no ua rau ntshav txhaws. Kev tsim cov ntshav txhaws qhov uas nws tsis tsim nyog tsim yog qhov txaus ntshai thiab ua rau muaj kev phom sij rau lub neej.
Platelet Plug yog dab tsi?
Ib platelet plug yog ib qho kev sib sau ntawm cov platelets uas tshwm sim thaum ntxov ntawm homeostasis vim yog raug mob rau cov hlab ntsha phab ntsa. Nws tseem hu ua homeostatic plug lossis platelet thrombus. Thaum platelets pib sib sau nyob ib ncig ntawm lub nkoj puas, qhov ua raws li cov platelets tso cai rau lawv los lo thiab txuas rau ib leeg. Qhov no tso cai rau tsim cov platelet ntsaws. Platelet plugs tiv thaiv kev poob ntawm cov ntshav ntau dhau thiab nkag mus rau cov kab mob hauv lub cev.
Platelet plug tsim yog kauj ruam thib ob hauv homeostasis. Cov txheej txheem no tshwm sim tom qab vasoconstriction. Nws tshwm sim hauv peb kauj ruam: platelet activation, platelet adhesion, thiab platelet aggregation. Raws li ib txwm muaj, cov ntshav ntws thoob plaws hauv lub cev yuav tshwm sim yam tsis muaj kev sib sau ua ke ntawm cov platelets vim tias platelets tsis tau npaj rau tus kheej cov txheej txheem. Qhov no ua rau thrombosis uas tsis xav tau. Txawm li cas los xij, coagulation yog tsim nyog thaum homeostasis. Yog li ntawd, platelets nyob rau hauv plasma yog ceeb toom rau plug tsim thaum lub vascular endothelium ua rau ib tug tsis siv neeg teb lus nyob rau hauv clotting thiab stimulates thrombin ntau lawm. Qhov no yog platelet activation. Thaum platelets tau qhib, lawv tuaj hla cov kab mob endothelial puas lawm. Lub von Willebrand factor (vWF) thiab fibrinogen yuav pab platelets kom ua raws li cov phab ntsa ntawm cov hlab ntsha. Qhov no hu ua platelet adhesion. Tom qab platelets los ntawm kev sib cuag nrog cov kab mob vascular raug mob, lawv pib cuam tshuam nrog ib leeg, thiab platelet aggregation tshwm sim. Thaum platelets ntau ntxiv, ntau cov tshuaj raug tso tawm thiab nyiam platelets ntau dua. Qhov no ua rau platelet plugs.
Dab tsi yog ntshav txhaws?
Cov ntshav txhaws yog ib qho gel zoo li cov ntshav sib sau ua ke hauv cov leeg lossis cov hlab ntsha thaum lub xeev cov ntshav hloov ntawm cov kua mus rau cov khoom. Cov ntshav txhaws kuj tseem hu ua coagulation ntawm cov ntshav. Clotting yog ib qho kev ua haujlwm uas tiv thaiv lub cev los ntawm cov ntshav ntau dhau. Lawv muaj txiaj ntsig zoo thaum raug mob lossis txiav. Lawm, cov ntshav txhaws tsim ua ib qho lus teb rau kev raug mob hauv cov hlab ntsha. Thaum cov hlab ntsha puas lawm, platelets tsim ib lub ntsaws rau hauv qhov chaw cuam tshuam. Qhov no pib ua kom muaj cov txheej txheem ntawm cov ntshav txhaws. Clotting yam yog cov khoom muaj nyob hauv plasma. Txhua qhov ua kom ntshav khov yog ib qho serine protease. Cov kab mob qog ntshav yog fibrinogen, prothrombin, thromboplastin, ionized calcium, proaccelerin, proconvertin, thiab antihemophilic yam. Vitamin K kuj tseem ua lub luag haujlwm tseem ceeb hauv cov ntshav txhaws. Cov ntshav txhaws hauv cov ntshav no ua rau tsim cov fibrin, uas yog cov khoom muaj zog uas nyob ib puag ncig platelet plug. Fibrin tsim cov qauv mesh zoo li hu ua fibrin clot kom lub ntsaws ruaj khov thiab ruaj khov. Fibrin ntxiv dag zog rau cov ntshav txhaws thiab yaj tom qab thaum cov hlab ntsha raug mob zoo.
ntshav txhaws yog qhov txaus ntshai thiab ua rau muaj kev phom sij rau lub neej thaum lawv tsis yaj lawm. Tus mob no yuav tsum tau noj tshuaj los yog kev kho mob. Thaum cov ntshav txhaws tsim qhov uas nws tsis tsim nyog, nws yog hu ua thrombus. Xws li cov hlab ntsha tuaj yeem txav mus los ntawm lub cev. Cov ntshav txhaws tuaj yeem tsim hauv cov hlab ntsha lossis cov hlab ntsha. Arterial clots nyob rau hauv lub hlwb yog hu ua strokes. Clots tsim nyob rau hauv lub plawv ua rau lub plawv nres. Cov ntshav txhaws kuj tshwm sim hauv cov hlab ntsha hauv plab. Cov ntshav txhaws no tau kuaj pom los ntawm kev kuaj ntshav, ultrasound, CT scan, MRA thiab MRI scans, thiab V / Q scans. Cov ntshav txhaws tau kho los ntawm kev siv tshuaj, compression stocking, phais, stents, thiab vena cava filters.
Dab tsi zoo sib xws ntawm Platelet plug thiab ntshav txhaws?
- Platelet plugs thiab ntshav txhaws tsim vim raug mob lossis puas rau phab ntsa hlab ntsha.
- Lawv tiv thaiv los ntshav tom qab raug mob.
- Ntxiv mus, lawv tshwm sim thaum homeostasis.
Dab tsi yog qhov txawv ntawm Platelet plug thiab ntshav txhaws?
Platelet ntsaws yog qhov thaiv ib ntus los kaw qhov kev raug mob thaum cov ntshav txhaws yog qhov ruaj khov dua rau qhov raug mob kom txog thaum nws zoo. Qhov no yog qhov sib txawv tseem ceeb ntawm platelet plug thiab ntshav txhaws. Platelet plugs koom nrog hauv kev ua haujlwm ntawm vWF yam, thaum cov ntshav txhaws tsis koom nrog qhov xwm txheej no.
Cov lus hauv qab no qhia txog qhov sib txawv ntawm platelet plug thiab ntshav txhaws.
Summary – Platelet Plug vs Blood Clot
Ob lub platelet plugs thiab cov ntshav txhaws pab tiv thaiv los ntshav ntau dhau. Lub platelet ntsaws yog qhov thaiv ib ntus txhawm rau kaw qhov kev raug mob thaum cov ntshav txhaws yog qhov ruaj khov rau qhov raug mob kom txog thaum nws kho tau. Platelet plug yog qhov sib sau ua ke ntawm platelets uas tshwm sim thaum lub sijhawm pib ntawm homeostasis vim yog kev raug mob rau cov hlab ntsha phab ntsa. Qhov no tshwm sim nyob rau hauv peb kauj ruam loj: platelet activation, platelet adhesion, thiab platelet aggregation. Cov ntshav txhaws los yog coagulation yog ib qho gel zoo li cov ntshav sib sau ua ke hauv cov leeg lossis cov hlab ntsha thaum lub xeev ntawm cov ntshav hloov ntawm cov kua mus rau cov khoom. Qhov no muaj cov tshuaj tiv thaiv enzymatic uas ua rau hloov pauv ntawm fibrinogen rau fibrin monomers. Fibrin ntxiv dag zog rau cov ntshav txhaws thiab yaj tom qab thaum cov hlab ntsha raug mob zoo. Qhov no qhia txog qhov sib txawv ntawm platelet plug thiab ntshav txhaws.
