The last reaction in the blood-clotting cascade involves the formation of
a. thrombin
b. prothrombin
c. fibrinogen
d. fibrin
e. calcium

The asnwer is d. fibrin

Explanation:

The last reaction of the coagulation cascade involves the formation of FIBRIN. We call coagulation to the process by which the liquid blood becomes a gel, to form a clot. This process gives rise to what we know as hemostasis, that is, suspension of the loss of blood, from the wound of a damaged vessel and repair. The coagulation cascade consists of 3 ways: extrinsic, intrinsic and common. This process also involves platelets.

the ileocecal valve (also called bauhin valve), which limits the rate of food passage into the cecum and may prevent material from returning to the small intestine.

activation of phospholipase c (plc) indirectly increases intracellular ions through inositol triphosphate (ip3).