Multiple Choice
In the context of platelet function and hemostasis, which term is another name for blood coagulation?
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17. The Blood
Platelets: Hemostasis
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In the process of hemostasis, what is the primary function of blood platelets (thrombocytes)?
A
They initiate vasodilation to increase blood flow and prevent clot formation.
B
They form a platelet plug and release factors that promote blood clotting at sites of vessel injury.
C
They produce antibodies to defend against specific pathogens.
D
They transport oxygen to tissues by binding and carrying it on hemoglobin.
Verified step by step guidance1
Understand that hemostasis is the process that stops bleeding at the site of an injured blood vessel.
Recognize that blood platelets, or thrombocytes, play a crucial role in this process by responding to vessel injury.
Know that platelets adhere to the damaged vessel wall and aggregate to form a temporary platelet plug, which helps seal the break.
Realize that platelets also release chemical factors that promote further clotting by activating other clotting proteins in the blood.
Distinguish this function from other blood components, such as red blood cells (which transport oxygen) and white blood cells (which produce antibodies).
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