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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...

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Related Experiment Video

Updated: Jan 7, 2026

Routine Screening Method for Microparticles in Platelet Transfusions

Routine Screening Method for Microparticles in Platelet Transfusions

Published on: January 31, 2018

Can We Really Believe This Platelet Count?

James Manning¹, Simona Deplano¹, Ketan Patel¹

¹Department of Haematology, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK.

American Journal of Hematology

|December 27, 2025

Summary

No abstract available in PubMed .

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