fehérvérsejtjei

Fehérvérsejtjei, also known as leukocytes or white blood cells, are an essential component of the immune system. Their primary function is to protect the body against infectious diseases and foreign invaders. These cells are produced in the bone marrow and circulate in the blood and lymph fluid. There are several types of white blood cells, each with a specific role in the immune response. Neutrophils are the most abundant type and are the first responders to bacterial infections. Lymphocytes, including T cells and B cells, are crucial for adaptive immunity, recognizing and remembering specific pathogens. Monocytes differentiate into macrophages, which engulf and digest cellular debris and foreign substances. Eosinophils and basophils are involved in fighting parasitic infections and allergic reactions, respectively. When the body detects a threat, white blood cells are mobilized to the site of infection or injury to neutralize the harmful agent. Their numbers can increase significantly during an infection, a phenomenon often detected in a blood test called a complete blood count (CBC). Understanding the role and types of fehérvérsejtjei is fundamental to comprehending the body's defense mechanisms.