Hemostasis, stages

Clotting of blood, which protects against hemorrhage, involves the sequential initiation, interaction, and completion of several stages in hemostasis (Table 4.2). 

Introduction. Cell deposition on various surfaces plays an important part in the initiation of many biological processes, such as hemostasis, thrombosis and growth of secondary tumors. It consists of two main stages (a) the conveyance of cells to the vicinity of the interacting surface, and (b) the adhesion of cells to this surface. In most of the biological systems, the main field which conveys the cells to the surface is a flow field. However, for experimental studies of the process of adhesion per se, it is convenient to use a stagnant solution in which cells are conveyed to the surface by gravity (Weiss and Harlos, 1972) or by a... 

Stages of hemostasis (a) vasoconstriction, (b) primary hemostasis, (c) secondary hemostasis, and (d) thrombus and antithrombotic events. Source Adapted from Reference 26. 

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