monocytermacrophager
Monocytes are a type of white blood cell that play a crucial role in the immune system. They are produced in the bone marrow and circulate in the bloodstream until they are activated and differentiate into macrophages. Macrophages are then recruited to sites of infection or injury, where they engulf and digest pathogens, cellular debris, and other foreign particles. This process is known as phagocytosis. Macrophages also play a significant role in the immune response by presenting antigens to T cells, producing cytokines, and regulating inflammation. They are found in various tissues throughout the body, including the liver, spleen, and lungs. Monocytes and macrophages are essential for maintaining immune homeostasis and protecting the body from infections and diseases.