The primary function of leukocytes, also known as white blood cells, is to defend the body against foreign substances and harmful microorganisms. Leukocytes are a crucial component of the immune system and are responsible for recognizing and eliminating pathogens, such as bacteria, viruses, and parasites. They accomplish this by engulfing and destroying the foreign invaders, producing antibodies, and coordinating immune responses. Additionally, leukocytes also play a role in the inflammatory response and in wound healing.
