Leucocyte May 2026

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

: Large cells that migrate into tissues to become macrophages, which engulf debris and pathogens. leucocyte

: They move from the bloodstream into tissues via the lymphatic vasculature using chemokine-directed "amoeboid movement". : The most numerous, acting as first responders to infection

The primary role of leucocytes is to protect the body against infectious diseases and foreign entities. They achieve this through several critical processes: The primary role of leucocytes is to protect

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:

: Specific cell adhesion molecules (CAMs) allow leucocytes to stick to vascular endothelial cells, a process essential for reaching the site of an injury or infection.

: Certain leucocytes, like neutrophils and macrophages, ingest and destroy harmful germs and cellular debris.