Which of the following substances is helpful in achieving a platelet plug at the site of injury to a blood vessel?

Question

Quizplus · Accepted Answer

Thromboxane A2 is a potent vasoconstrictor and platelet aggregator that is secreted by activated platelets. Thromboxane A2 helps in achieving a platelet plug at the site of injury to a blood vessel. Fibrinogen is important in the clotting cascade but does not directly contribute to platelet plug formation. Fibrin is the end product of clotting cascade and helps stabilize the clot. Hemoglobin is a protein in red blood cells that carries oxygen, it does not play a role in platelet plug formation.

Which of the Following Substances Is Helpful in Achieving a Platelet