Select the conditions necessary to activate a delayed-type hypersensitivity reaction:

The rebinding of the allergen antigen to IgE and mast cells is called sensitization because mast cells coated with IgE are ready for immediate activation.

Give a brief description of the biological functions of the complement system:

Match the names and types of receptors of the innate immune system:

Complete the statement. Small organic molecules that are antigenic but not immunogenic are called .

Complete the statement. FPR (Formyl-Peptide Receptors) regulatу chemotaxis.

Match the names and brief characteristics of the soluble receptors of the innate immune system:

Select the correct characteristics of the complement system:

Select cytokines and biologically active mediators of macrophages and neutrophils that initiate the development of inflammation:

C3b is considered a central molecule in the activation of the complement cascade, as well as in the activation reactions of the blood coagulation system.