good wiki

White blood cell

White blood cells, or leukocytes, are an essential part of the immune system and are responsible for protecting the body against infections and diseases. They are produced in the bone marrow and circulate throughout the body via the bloodstream.

More at Wikipedia

About

They are produced in the bone marrow and circulate throughout the body via the bloodstream. White blood cells are categorized into five main types: neutrophils, lymphocytes, monocytes, eosinophils, and basophils, each with its specific functions and characteristics. Neutrophils are the most abundant type of white blood cells and play a crucial role in fighting bacterial infections. Lymphocytes are responsible for coordinating the immune response and can be further divided into B cells and T cells. Monocytes are a type of white blood cell that helps to engulf and destroy foreign particles, while eosinophils are involved in combating parasitic infections and are also implicated in allergies. Basophils are the least common type of white blood cells and are involved in allergic reactions and the immune response to parasites. The function of white blood cells involves recognizing and neutralizing foreign substances, such as viruses and bacteria, through various mechanisms including phagocytosis, the production of antibodies, and the release of chemicals to destroy pathogens. White blood cells are capable of moving through the bloodstream and tissue to reach the site of an infection or inflammation. Alterations in white blood cell counts or functions can indicate the presence of various health conditions, including infections, autoimmune disorders, and certain types of cancers. White blood cell disorders, such as leukopenia (low white blood cell count) or leukocytosis (high white blood cell count), can be diagnosed through blood tests and may require further medical investigation and treatment. The Wikipedia page on white blood cells provides a comprehensive overview of these vital immune system components, including their types, functions, production, migration, and disorders. It also covers related topics such as white blood cell distribution, development, and lifespan. This page serves as an informative resource for those seeking knowledge about white blood cells and their role in maintaining overall health and immunity.