Immune Response, Immune Response

Immune Response is the response of the immune system to the appearance of any antigens in the body. There are two types of immune reactions, which are caused by two types of lymphocytes:

1. B lymphocytes are responsible for humoral immunity. They cause the formation of free antibodies that circulate in the blood.

2. T lymphocytes are responsible for cell-mediated immunity. They directly attack cells infected with viruses or other pathogens.

Thus, the immune system uses two defense mechanisms - humoral and cellular immunity - to effectively fight foreign agents that enter the body. The coordinated work of B and T lymphocytes allows the body to successfully resist infections.

An immune reaction, an immune response, is the body’s reaction to the appearance of antigens in it, which is one of the main functions of the immune system. This reaction consists of the production of antibodies aimed at destroying foreign agents.

There are two types of immune reactions depending on which cells are involved in the process. The first type is humoral immunity, which is caused by B lymphocytes. These cells produce antibodies that circulate in the bloodstream and can bind to antigens. The second type is a cell-mediated immune response, which is caused by T lymphocytes. They are activated by antigens and begin to attack foreign cells using their own enzymes and proteins.

The immune reaction can be either active or passive. In the case of an active reaction, the body itself produces antibodies and killer cells, and in the case of a passive reaction, antibodies are introduced from the outside, for example, during vaccination.

The immune system plays an important role in protecting the body from infections and other diseases. It is also involved in the regulation of inflammation and tissue regeneration. However, in some diseases, such as autoimmune diseases or allergic reactions, the immune system can become abnormal and begin to attack the body's own cells.

Overall, the immune response is a complex process that requires coordination between different types of cells and regulators. Understanding the mechanisms of this reaction is important for the development of new methods for the treatment and prevention of infectious diseases.

One of the key factors in ensuring the health and protective abilities of the body is the body's defense system, called the immune system. It protects the body from various pathogens such as viruses, bacteria, parasites, as well as harmful substances and cancer cells.

The meaning of the immune response is clear to everyone: when encountering foreign bodies, including microbes, cancer cells, and sometimes its own damaged tissues, the body produces agents - biological substances that suppress or destroy foreign substances. At the same time, the immune system is trained when the body is exposed to foreign material in small doses. There are two main systems of immunity: humoral and cellular. These two systems do not compete with each other, but interact harmoniously. Their job is to maintain homeostasis. The cellular (cell-dependent) system protects the body from intracellular agents. Let's consider the humoral system.