GENERAL HISTOLOGY

Detailed explanation-1: -Agglutination occurs when an insoluble or particle antigen interacts with an antibody. A positive reaction can be detected macroscopically in a short time. However, the antigen-antibody complex may be seen with the naked eye if the complex size is large. Both IgG or IgM could be involved in the agglutination reaction.

Detailed explanation-2: -Agglutination is the clumping of particles. The word agglutination comes from the Latin agglutinare (glueing to).

Detailed explanation-3: -The reaction between red cells and corresponding antibodies usually results in clumping-agglutination-of the red cells; therefore, antigens on the surfaces of these red cells are often referred to as agglutinogens.