Which of the following statements about blood clotting is true?
A) The first response to an injury is dilation of the damaged blood vessels.
B) During the clotting response, platelets rapidly congregate in the interstitial fluid.
C) Fibrin is enzymatically converted to fibrinogen.
D) Threads of fibrin form a fibrin clot.

Question

Quizplus · Accepted Answer

Threads of fibrin are formed from fibrinogen through a process of enzymatic conversion during clotting. These threads then aggregate and cross-link to form a fibrin clot. Option A is incorrect because the initial response to an injury is vasoconstriction rather than dilation, which helps to limit blood loss. Option B is also incorrect because platelets congregate specifically at the site of injury rather than in the interstitial fluid, where they release clotting factors and initiate the clotting response. Option C is also incorrect because it states the reverse process of what actually occurs during clotting.

Which of the Following Statements About Blood Clotting Is True