Here's how it works:
* Phagocytosis: Neutrophils engulf and destroy pathogens directly, a process called phagocytosis.
* Chemical Warfare: They also release chemicals like:
* Reactive oxygen species (ROS): These are highly reactive molecules that damage the pathogen's cell structures.
* Enzymes: These break down the pathogen's proteins and other molecules.
* Cytokines: These signaling molecules attract other immune cells to the site of infection.
Other immune cells that also release chemicals to fight pathogens include:
* Macrophages: Similar to neutrophils, they engulf and destroy pathogens and release chemicals like ROS and enzymes.
* Natural Killer (NK) cells: These cells target and destroy infected cells and cancer cells, often by releasing chemicals like cytotoxic granules.
* Eosinophils: They are important for fighting parasites and allergic reactions, releasing chemicals that damage the parasite and attract other immune cells.
Let me know if you'd like to know more about any of these white blood cells or the specific chemicals they release!