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Why is it advantageous for clot formation to involve molecules on the surface of activated...

Question:

Why is it advantageous for clot formation to involve molecules on the surface of activated platelets?

Hemostasis:

Hemostasis is the process that stops blood flow through a wound site, thereby minimizing blood loss. Hemostasis involves the formation of a clot to plug a hole in the damaged blood vessel.

Answer and Explanation: 1

Platelets, or thrombocytes, are cells that are involved in the formation of a clot. These cells originally form a plug that blocks the hole in a damaged blood vessel. Then, a clot forms as more platelets aggregate and additional proteins stabilize the clot. It is useful for clot formation to involve molecules on the surface of activated platelets because it helps promote clot formation at sites where platelets have formed a plug and it helps platelets stick together using surface proteins.


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Blood Coagulation and Wound Healing

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Chapter 6 / Lesson 18
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After suffering a wound, the body does everything it can to promote blood clotting and, ultimately, wound healing. The general term hemostasis refers to the stoppage of bleeding, and it just one of the many factors, others being platelets and thromboxane A2, that are essential for proper wound healing. This lesson details the process of blood coagulation, from the clotting factors to the coagulation cascade.


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