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To avoid blood loss, when the walls of a blood vessel are broken, platelets become sticky and release substances to form protein fibers in the blood plasma, trapping red blood cells and resulting in a clot that plugs the wound to stop bleeding.

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How to avoid blood loss 1. When the walls of a blood vessel are broken, bleeding occurs. 2. The platelets become sticky and release substances which form protein fibres in the blood plasma. 3. These fibres form a net which traps the red blood cells, resulting in a clot that plugs the wound.
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  • 1. How to avoid blood loss 1. When the walls of a blood vessel are broken, bleeding occurs. 2. The platelets become sticky and release substances which form protein fibres in the blood plasma. 3. These fibres form a net which traps the red blood cells, resulting in a clot that plugs the wound.