immuunsüsteemist
The immuunsüsteem, or immune system, is a complex network of cells, tissues, and organs that work together to defend the body against harmful invaders like bacteria, viruses, and parasites. It is the body's primary defense mechanism against disease. The immune system has several key components. White blood cells, also known as leukocytes, are crucial for identifying and destroying foreign substances. These include lymphocytes, such as B cells and T cells, which play specific roles in recognizing and attacking pathogens, and phagocytes, which engulf and digest cellular debris and foreign microorganisms.
There are two main branches of the immune system: the innate immune system and the adaptive immune
A healthy immune system is essential for overall well-being. However, sometimes the immune system can malfunction,