platelet thrombocyte with red and white blood cells illustration close |
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| navigate by keyword : anatomy artery background basophils biology blood body cancer cell cells closeup clot disease eosinophils erythrocyte flow genetic health healthy hemoglobin human illness infection life lymphocytes macro medical medicine microbiology microscope microscopic monocytes neutrophils organic platelet red render science scientific sick sickness stream thrombocyte vascular vein virus |
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| Platelets, also called thrombocytes `clot` and `cell`, are a component of blood whose function along with the coagulation factors is to react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot. Platelets have no cell nucleus they are fragments of cytoplasm that are derived from the megakaryocytes of the bone marrow, which then enter the circulation. |
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