👉 Histocompatibility is a term used in medicine to describe the ability of an immune system to recognize and respond to specific antigens (antibodies) that are not recognized by other cells. Histocompatibility is crucial for the functioning of the immune system, as it allows the body's immune response to recognize and eliminate foreign substances such as pathogens, cancer cells, and toxins. Histocompatibility is a complex process involving several different types of proteins: immunoglobulins (Ig), which are