immune system
protects the body against pathogens
The immune system is a complex network of cells, tissues, and organs that work together to defend the body against harmful pathogens like bacteria, viruses, and fungi. The primary function of the immune system is to identify and destroy any foreign invaders in the body, while preserving the healthy tissues.
There are two types of immune responses: innate and adaptive. Innate immunity is the first line of defense and includes physical barriers like the skin, tears, and mucus membranes, along with various immune cells that work to identify and remove any invading pathogens. Adaptive immunity, on the other hand, is specific to the pathogen and is acquired over time. It involves the production of antibodies and specialized immune cells that specifically target the invading pathogen and help to eliminate it.
The immune system is regulated by a complex network of chemical signals known as cytokines and chemokines, which help to coordinate the activity of immune cells and ensure effective responses to any threats. However, problems with the immune system can lead to various health problems, including autoimmune diseases, allergies, and immunodeficiency disorders.
More Answers:
The Role of Immune Cells in Cytokine Production: An OverviewThe Power of Cytokines: Immune System Communication for Health and Healing
Acquired Immunity: Types, Mechanisms, and Benefits for Long-Lasting Protection