Leucocyte May 2026

: The most numerous, acting as first responders to infection.

Leucocytes are generally classified by their cell lineage into or lymphoid cells and further divided based on the presence of granules in their cytoplasm: Granulocytes : Contain visible granules and include: leucocyte

The primary role of leucocytes is to protect the body against infectious diseases and foreign entities. They achieve this through several critical processes: : The most numerous, acting as first responders to infection

: Certain leucocytes, like neutrophils and macrophages, ingest and destroy harmful germs and cellular debris. : Release histamine and other chemicals during inflammatory

: Release histamine and other chemicals during inflammatory reactions. Agranulocytes : Lack visible granules and include:

: Primarily involved in battling parasitic infections and allergic responses.

(also spelled leukocytes), commonly known as white blood cells (WBCs) , are the mobile units of the body's defensive system. They are produced in the bone marrow and lymph tissue and are distributed throughout the blood and lymphatic systems. Unlike red blood cells, all leucocytes have nuclei, which is their primary distinguishing feature. Classification of Leucocytes