The immune system is a biological defence function of the human body, which identifies “self” and “non-self” components, destroys and excludes antigen substances that enter the human body, or damage cells and oncological cells that are produced by the human body itself, to maintain the health of the human body. The immune system consists of immunosuppressive organs, immunosuppressive cells and immunoactive substances, which work together to create three immune lines for the human body.
Three functions of the immune system.
1. Immunization defence: this is the most visible function of the immune system, which refers to the ability of the organism to resist and remove pathogenic microorganisms or other foreign objects. This function may be hypersensitive when it is too high; when it is too low, it can lead to immuno-deficiency diseases.
Immunological self-stable: The immune system is able to identify and remove cells of internal aging, death or injury in a timely manner and to maintain the physical balance of the organism. When this function is abnormal, it can lead to autoimmune diseases such as rheumatism arthritis.
3. Immunization surveillance: The immune system is capable of identifying and removing mutations in the body and preventing the occurrence of tumours. When immunization surveillance is low, it is prone to malignant tumours.
Composition of the immune system
1. Immunological organs: consisting of bone marrow, breast glands, spleen, lymphocytes, etc., which are places where immunocells are formed, mature or concentrated.
2. Immunocellular cells: These include, inter alia, tasting cells, lymphocytes (T and B cells). T-cells mature in the breast, and B-cells mature in the bone marrow.
3. Immunoactive substances: Immunoactive substances produced by immunocellular or other cells, including antibodies, lymphatics, soluble enzymes, etc.
Immunization mechanisms of the immune system
The function of the immune system is that the immune cell reacts to antigen signals in the internal and external environment. Immunization responses include both congenital and adaptive immune responses. Inherent immunisation responses are the natural defence mechanisms that organisms develop in the development and evolution of seed systems, while adaptive immunisation responses are the result of the development of individuals in the development process in contact with the antigens, and are only resistant to the original effects of the anomaly.
Learning and optimization of the immune system
The immune system has recognition, memory, learning, positive feedback, adaptation, negative feedback, optimization, etc. It can increase the relative strength of B cells and antigens through several generations of choice and variation, resulting in higher proxies and strength B cells further divided into anti-genocrine cells, i.e. slurry cells, producing a large number of active antigens to eliminate them.
Immunization systems and diseases
Illnesses in the immune system can lead to multiple diseases. For example, when the immune system wrongly identifies its own tissue as an external antigen, it can experience its own immune conditions, such as systematic red hythmia, rheumatism and arthritis. In addition, when the immune system is low, the body is vulnerable to infectious diseases; when the function is too strong, it can lead to an allergic or hypersensitive response.
Summary
The immune system is a complex and fine human defence network that not only protects us from pathogens, but is also involved in maintaining stability and surveillance of the internal environment of the organism. Understanding the functions and composition of the immune system is important to our understanding of our own health and disease control. Through a rational diet, adequate exercise and adequate sleep, we can effectively maintain and enhance the functioning of the immune system.
