How do white blood cells fight disease?

Answer 1

Pathogens (disease causing agents) are always present in the environment. When they invade in the body, pathogen-destroying white blood cells act as the a line of defense for the body. Macrophages and neutrophiles destroy microorganisms through phagocytosis (engulfing them whole) and are found in the interstitial fluid (outside of the blood stream and cells). The pathogen is drawn into the macrophage where enzymes such as lysozyme kill the pathogen. White blood cells can also identify certain proteins an carbohydrates on the surface of invading pathogen and this recognition triggers the cell's responses. Lymphocytes do not attack directly but instead, they recognize that the cell has become infected by a virus and release antibodies that tags to invader by binding to the antigen molecule. This triggers the mechanism that destroys the invader.

Answer 2

White blood cells have special proteins on their surface that allow them to recognize and bind to foreign invaders like bacteria or viruses. Once attached, the white blood cells release enzymes and toxins to destroy the invaders. They can also produce antibodies to help neutralize the threat and remember it for future encounters.

Answer 3

They produce anti bodies and anti toxins they may also attempt to "eat" the cell in a process called phagocytosis.

Answer 4

Why do I have high white blood cells