A patient suffers from disseminated intravascular coagulation (DIC). The following image shows the lesion microcirculation. The major component of this lesion (black arrow) is ( ) A: Platelet B: Red blood cell C: Leukocyte D: Fibrin

Which of the following is least likely to be associated with an increase in the inflammatory <br/>response? A: necrosis of cells, followed by phagocytosis of neutrophils B: release of peptides curing cleavage of fibrinogen to fibrin (blood clotting) C: cleavage of C5 during complement activation D: apoptosis of surplus healthy cells E: secretion of IFNγ by macrophages and TH cells

Where do the clots come from? Blood flow slow down. A sudden change in heart rhythm leads the upper chambers to contract abnormally. Platelets, clotting factors, and fibrin stick together. The clot can be carried up towards the arteries and blood vessels supplying the brain until getting to one it can't squeeze through. A: ①②③④ B: ②①③④ C: ②③①④ D: ①③④②

How is the embolism of a thrombotic stroke formed? ① Blood flow slows down. ② A sudden change in heart rhythm prevents the upper chambers of the heart from contracting normally. ③ Platelets, clotting factors, and fibrin stick together. ④ The clot can be carried up towards the arteries and blood vessels supplying the brain until it can’t squeeze through. A: ②④③① B: ②①③④ C: ②①④③ D: ①②④③