Which of the following circulatory components is not normally found circulating in the plasma?
A) Platelets
B) Thrombin
C) Albumin
D) Fibrinogen
E) Both a and c

Question

Quizplus · Accepted Answer

Thrombin is an enzyme produced during the clotting cascade that converts fibrinogen to fibrin, but it does not circulate freely in the plasma. Rather, it is only present during the clotting process. Platelets, albumin, and fibrinogen are all normally found circulating in the plasma.

Which of the Following Circulatory Components Is Not Normally Found