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Structure and Function of Platelets

Structure and Function of Platelets

The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000 platelets, with...

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Updated: May 12, 2026

Comprehensive Analysis of Procoagulant Platelets Exhibiting Features of Necrosis, Apoptosis and Platelet Activation

Comprehensive Analysis of Procoagulant Platelets Exhibiting Features of Necrosis, Apoptosis and Platelet Activation

Published on: May 23, 2025

Platelet morphology analysis.

Véronique Latger-Cannard¹, Odile Fenneteau, Sylvain Salignac

¹Hematology Department and Grand East Competence Center on Inherited Platelet Disorders, CHU Nancy, Nancy, France.

Methods in Molecular Biology (Clifton, N.J.)

|April 3, 2013

Summary

This summary is machine-generated.

Accurate platelet morphology analysis using stained blood films aids in diagnosing inherited and acquired platelet disorders. This method helps identify abnormalities crucial for hematological disease assessment.

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Area of Science:

Hematology
Cell Biology

Background:

Platelets are vital small blood cells (1.5-3 μm) essential for primary hemostasis and coagulation.
Characterizing platelets involves counting and precise morphology analysis.
Abnormal platelet morphology is linked to various acquired malignant hematological diseases.

Purpose of the Study:

To outline key steps for preparing stained blood films for optical microscope analysis.
To emphasize the diagnostic value of platelet morphology in hematological conditions.

Main Methods:

Detailed description of procedures for obtaining correctly stained blood films.
Analysis of platelet size and morphology via optical microscopy.

Main Results:

Platelet morphology abnormalities are indicative of myeloproliferative/myelodysplastic syndromes and acute megakaryoblastic leukemia.
Detection of variations in platelet size (microplatelets, large/giant platelets) and anisocytosis is crucial.

Conclusions:

Accurate platelet morphology analysis is essential for diagnosing inherited thrombocytopenia.
Morphological assessment provides substantial data for identifying acquired platelet disorders.