Final answer:
Fibrin split products (FSP) are small peptides and amino acids that are formed during fibrinolysis, the gradual degradation of a blood clot. FSP are produced when fibrin, an insoluble protein, is broken down by the enzyme plasmin. They also have antibody functions.
Step-by-step explanation:
Fibrin split products (FSP) are small peptides and amino acids that are formed during the process of fibrinolysis, which is the gradual degradation of a blood clot. Fibrin, an insoluble protein, forms a mesh that traps platelets and erythrocytes, producing a clot. FSP are the result of the conversion of fibrin into smaller components through the action of plasmin, an enzyme that breaks down fibrin. FSP also function as antibodies.