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Zgrušavanje krvi

Zgrušavanje ili koagulacija krvi je proces stvaranja krvnog ugruška (koaguluma), kojim se zaustavlja krvarenje iz krvnih žila. Zgrušavanje krvi je jedan od procesa hemostaze.

Hemostaza

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Hemostaza označava proces zaustavljenja krvarenja iz oštećene krvne žile:

  • sužavavanje krvnih žila
  • stvaranje trombocitnog čepa
  • stvaranje krvnog ugruška (koagulacija)
  • stabilizaciju krvnog ugruška ili njegovo razlaganje (liza)


Sužavanje krvnih žila

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Odmah nakon oštećenja krvne žile dolazi do njezinog sužavanja. Na taj način se smanjuje gubitak krvi iz otvora. Sužavanje je posljedica živčanih refleksa, lokalne kontrakcije mišića krvne žile kao odgovor na oštećenje i vazokonstriktornih tvari iz ozlijeđenog tkiva i krvnih pločica npr. tromboksan A2, serotonin...

Vanjske poveznice

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Logotip Zajedničkog poslužitelja Zajednički poslužitelj ima još gradiva o temi Zgrušavanje krvi
Nedovršeni članak Zgrušavanje krvi koji govori o medicini treba dopuniti. Dopunite ga prema pravilima Wikipedije.
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Zgrušavanje krvi
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