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  1. What Are Platelets and Why Are They Important? - Johns Hopkins Medicine

    Platelets are the cells that circulate within our blood and bind together when they recognize damaged blood vessels.

  2. What Are Platelets? Function & Anatomy - Cleveland Clinic

    Overview What are platelets? Platelets, also called thrombocytes, are tiny cell fragments in your blood that help with clotting. Platelets are your body’s natural bandage to stop bleeding if you’re injured.

  3. Platelet count blood test: Normal, low, and high values

    Apr 25, 2025 · A platelet count measures the average platelet level in a person’s blood. High or low platelet levels can increase the risk of clotting or excessive bleeding.

  4. Platelet - Wikipedia

    Platelets or thrombocytes (from Ancient Greek θρόμβος (thrómbos) 'clot' and κύτος (kútos) 'cell') are a part of blood whose function (along with the coagulation factors) is to react to bleeding from blood …

  5. What Are Platelets In Blood

    Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding. Platelets are made in our bone marrow, the sponge-like tissue inside our bones. …

  6. What Are Platelets: Structure, Functions, and Importance

    May 10, 2025 · Platelets are one of the main types of blood cells in your body, along with red blood cells and white blood cells. Also known as thrombocytes, platelets are responsible for helping your blood...

  7. Platelets (Thrombocytes): Function, Normal Values, and More

    Nov 18, 2025 · Platelets, also known as thrombocytes, are special blood cells with an important function. Platelets control blood clotting, which means they are critical for healing wounds and stopping bleeding.

  8. What Are Platelets? - University of Rochester Medical Center

    Platelets are tiny blood cells that help your body form clots to stop bleeding. If one of your blood vessels gets damaged, it sends out signals to the platelets. The platelets then rush to the site of damage and …

  9. Blood - Platelets, Thrombocytes, Clotting | Britannica

    Dec 15, 2025 · The blood platelets are the smallest cells of the blood, averaging about 2 to 4 μm in diameter. Although much more numerous (150,000 to 400,000 per cubic mm) than the white cells, …

  10. Platelets - Hematology Explained

    Platelets, or thrombocytes, are the smallest but one of the most essential components of blood. Acting as the body’s first responders, platelets rapidly mobilize to seal injured blood vessels, prevent …