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medical-notes/content/Anatomi & Histologi/Histologi/Blod/Trombocyt.md
2025-11-23 09:54:44 +01:00

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Kort
- Cellfragment från megakaryocyter som deltar i primär hemostas och koagulation.
Kännetecken (LM/EM)
- LM: små violetta fragment 2-4 µm. EM: granula (alfa, delta), öppet kanalikulärt system.
Funktion
- Adhesion (via vWF), aggregation (ADP/TXA₂), frisätter koagulationsstimulerande faktorer.
Andel i blod
- 150-400 × 10³/µL (typiskt referensintervall).
Livslängd
- 8-10 dagar; elimineras i mjälte.
Relaterat
- [[Trombopoes|Trombopoes]]
- [[Hemostas Primär|Hemostas - primär]]