Leucocyte

: 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.

: Primarily involved in battling parasitic infections and allergic responses. leucocyte

: Certain leucocytes, like neutrophils and macrophages, ingest and destroy harmful germs and cellular debris. : Specific cell adhesion molecules (CAMs) allow leucocytes

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

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

(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

: Key players in the adaptive immune system, further divided into T cells (cell-mediated immunity) and B cells (antibody production). Function and Mechanism