2. Platelets in the blood are a. designed for gas transport. b. essential for the clotting process. c. the only complete cells of the formed elements of the blood. d. a part of the immune system and crucial to our defense against disease.
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Platelets, or thrombocytes, are tiny cell fragments in our blood that play a key role in hemostasis, the process that prevents excessive bleeding. When a blood vessel is injured, platelets quickly adhere to the site of the injury, forming a temporary plug to stem the flow of blood. They also release chemicals that recruit more platelets and promote the healing of the tissue. While they contribute to clotting, platelets do not carry oxygen like red blood cells or play a direct role in immune defense like white blood cells. Their primary function revolves around clot formation and wound healing, making them vital for injuries and surgeries. They truly are the unsung heroes of our circulatory system!
