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  1. 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 …

  2. 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.

  3. What Are Platelets and Why Are They Important?

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

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

    Aug 26, 2024 · Proteins on the exterior of your platelet walls are sticky to help them adhere to your blood vessels. When actively clotting, platelets extend filaments (a long thread of cells) …

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

    Nov 18, 2025 · Platelets help stop bleeding by forming clots, which are essential for healing wounds. A normal platelet count is between 150,000 and 450,000 platelets per microliter of …

  6. What Are Platelets In Blood

    Platelets control bleeding in our bodies, so they can be essential to surviving surgeries such as organ transplant, as well as fighting cancer, chronic diseases, and traumatic injuries.

  7. Health Encyclopedia - 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 …

  8. Platelet | Clotting, Coagulation, Thrombosis | Britannica

    Nov 14, 2025 · Platelet, colourless, nonnucleated blood component that is important in the formation of blood clots (coagulation). Platelets are found only in the blood of mammals.

  9. Definition of platelet - NCI Dictionary of Cancer Terms

    Platelets are pieces of very large cells in the bone marrow called megakaryocytes. They help form blood clots to slow or stop bleeding and to help wounds heal. Having too many or too few …

  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, …